Microwave-doppler detecting module and device thereof

ABSTRACT

A microwave-doppler detecting module and device thereof are provided, wherein the microwave-doppler detecting module includes an electromagnetic reflecting surface and at least a pair of antithetical dipoles spacingly disposed to the electromagnetic reflecting surface. When the first and second radiating source poles respectively extended from a first and second feed ends of the pair of antithetical dipoles are respectively fed by the same excitation signal feed source at the first feed end and the second feed end, the current and the potential distribution of the first radiating source pole and the second radiating source pole can present an antithetical distribution state and antithetically coupled to the midpoint of the connection of the first feed end and the second feed end, so as to reduce the size requirement of the microwave-doppler detecting module and to avoid detection dead zone from occurring.

BACKGROUND OF THE PRESENT INVENTION Field of Invention

The present invention relates to the field of microwave-dopplerdetection and, in particular, to a microwave-doppler detecting moduleand device thereof.

Description of Related Arts

Microwave detection technologies based on Doppler Effect, are utilizedas a critical key in detecting and relating humans and objects and havea unique advantage among the behavior detection and existence detectiontechnologies. It is able to detect moving object without invadingindividual privacy. Therefore, such technology has a wide-rangingapplication prospect.

Conventional microwave detection modules, based on the structures of theradiation source, can mainly be divided into microwave detection modulesof columnar radiation source structure and microwave detection modulesof flat radiation source structure. More specifically, referring toFIGS. 1A and 1B, the structural principles of conventional microwavedetection module 10P of columnar radiation source structure andmicrowave detection module 20P of flat radiation source structure arerespectively illustrated. In which, the microwave detection module 10Pof columnar radiation source structure comprises a columnar radiationsource 11P and a reference ground surface 12P, wherein the referenceground surface 12P has a radiating aperture 121P arranged thereon,wherein the columnar radiation source 11P perpendicularly penetrates thereference ground surface 12P through the radiating aperture 121P and aradiating clearance 1211P is provided between the radiating aperture121P and the reference ground surface 12P, so that when the columnarradiation source IP is fed, the columnar radiation source 11P can becoupled with the reference ground surface 12P to form a radiation space100P from the radiating clearance 1211P with the columnar radiationsource 11P as the central axis, wherein the radiation space 100P is thecoverage area of the electromagnetic wave radiated by the microwavedetection module 10P of columnar radiation source structure, wherein theradiation space 100P is respectively sunken from the central axis at thetwo ends of the columnar radiation source 11P, rendering detection deadzones. It is understandable that, in actual utilization, such as avertical detecting application, when the microwave detection module 10Pof columnar radiation source structure is mounted on a place such as asuspended ceiling, regular ceiling, shed ceiling, and etc., and isutilized from a vertical direction to perpendicularly detectingdownward, the mounting position of the microwave detection module 10P ofcolumnar radiation source structure is usually lowered for reducing oravoiding detection dead zone of the corresponding radiation space 100Pfrom occurring in the space between the ground and the microwavedetection module 10P of columnar radiation source structure. In otherwords, because the microwave detection module 10P of columnar radiationsource structure has a detection dead zone, the detecting distance ofthe microwave detection module 10P of columnar radiation sourcestructure in real utilization is way smaller than the maximum size ofthe corresponding radiation space 100P in the central axial direction.That is the detecting distance of the microwave detection module 10P ofcolumnar radiation source structure in real utilization is much smallerthan the detecting distance according to the scale of the gain thereof.The gain of the conventional microwave detection module 10P of columnarradiation source structure, which is usually about 2 dB, further limitsthe application of the conventional microwave detection module 10P ofcolumnar radiation source structure in the field of microwave-dopplerdetection.

Referring to FIG. 1B, the structure and principle of the microwavedetection module 20P of flat radiation source structure are illustrated,wherein the microwave detection module 20P of flat radiation sourcestructure includes a flat panel radiation source 21P and a referenceground surface 22P, wherein the flat panel radiation source 21P and thereference ground surface 22P are spacingly arranged and parallel to eachother, while a radiating clearance 23P is defined and provided betweenthe flat panel radiation source 21P and the reference ground surface22P. It is understandable that because, structurally, the columnarradiation source 11P of the microwave detection module 10P of columnarradiation source structure is perpendicular to the reference groundsurface 12P, comparing to the microwave detection module 20P of the flatradiation source structure that is close to a flat plate structure, themicrowave detection module 10P of columnar radiation source structure islikely to occupy a larger mounting space in an actual installation. As aresult, under the current aesthetic trend of pursuing compact and simpleappearance, the microwave detection module of flat radiation sourcestructure is more enjoyable and appreciable to its advantages of smallvolume and relative stabilization.

Nevertheless, in some application scenarios, the microwave detectionmodule 10P of columnar radiation source structure is more advantageousthan the microwave detection module 20P of flat radiation sourcestructure. For example, referring to FIG. 2 , the application of themicrowave detection module 10P of columnar radiation source structureutilized in a LED light board 30P is illustrated, wherein the LED lightboard 30P has a plurality of LED lights 31P arranged on one sidethereof, so as to create a lighting side on the side of the LED lightboard 30P. It is understandable that, in order to control theillumination of the LED light board 30P based on human activity,conventional microwave detection module is utilized on such LED lightboard 30P and, according to actual application, effectiveelectromagnetic wave detecting signal should be radiated in the spacecorresponding to the lighting side of the LED light board 30P. Becausecurrent LED light boards 30P are usually made of electric conductivealuminum sheet, in order to avoid the shielding effect of the electricconductive LED light board 30P to the electromagnetic wave detectingsignal and from the perspective of the stability of human activitydetecting, ideally, the microwave detection module as a human activitydetecting component should be disposed on the illumination side of theLED light board 30P. Nevertheless, whether the microwave detectionmodule 10P of columnar radiation source structure or the microwavedetection module 20P of flat radiation source structure is utilized,because the corresponding reference ground surface 12P and the minimumvalue of the area size of the reference ground surface 22P arerestricted, the mounting of the microwave detection module 10P ofcolumnar radiation source structure or the microwave detection module20P of flat radiation source structure on the illumination side of theLED light board 30P will inevitably occupy the mounting sites of part ofthe LED lights 31P or shade part of the LED lights 31P, rendering darkzone of the light emitted by the LED light board 30P.

Hence, in order to achieve the illumination of the LED light board 30Pbased on the control of human activity, conventionally it is mainlybased on the arrangement from affecting the LED lights 31P. A throughhole 32P is formed in the LED light board 30P. Besides, the columnarradiation source 11P of the microwave detection module 10P of columnarradiation source structure is extended from the side of the LED lightboard 30P opposite to the illumination side through the through hole 32Pto pass through the LED light board 30P to the illumination side of theLED light board 30P, so as to conceal the reference ground surface 12Pof the microwave detection module 10P of columnar radiation sourcestructure on the side of the LED light board 30P opposite to theillumination side. Therefore, the mounting of the microwave detectionmodule 10P of columnar radiation source structure on the LED light board30P can avoid occupying the sites of part of the LED lights 31P orshading part of the LED lights 31P, so as to maintain the evenness anduniformity of the light emitted from the LED light board 30P.Nonetheless, in real utilization, due to the limits of the maximum valueof the size of the through hole 32P and the minimum value of thethickness of the LED light board 30P, the coupling between the referenceground surface 12P and the columnar radiation source 11P of themicrowave detection module 10P of columnar radiation source structurewill be blocked by the LED light board 30P. In other words, thecorresponding radiation space 100P on the illumination side of the LEDlight board 30 will be reduced due to the shielding and reflex action ofthe LED light board 30P. As a result, the stability of the humanactivity detection of the microwave detection module 10P of columnarradiation source structure utilized on the LED light board 30P is notideal. In addition, because of the reflex action of the LED light board30P and the directivity of the bidirectional radiation of the microwavedetection module 10P of columnar radiation source structure, thecorresponding radiation space 100P at the side opposite to theillumination side of the LED light board 30P will be enhanced. In otherwords, the radiating energy of the microwave detection module 10P ofcolumnar radiation source structure on the side opposite to theillumination side of the LED light board 30P will be enhanced. As aresult, when there is metal object, such as the metal shell of the LEDlight board 30P, the metal pipeline in the suspended ceiling space, andetc., presenting in the corresponding space of the side opposite to theillumination side of the LED light board 30P, the microwave detectionmodule 10P of columnar radiation source structure is likely to wronglydetect active object due to self-excitation, which therefore affects theexperience of the smart control of the LED light board 30P based ondetecting human activity.

In other words, contrasting to the microwave detection module 20P offlat radiation source structure, the microwave detection module 10P ofcolumnar radiation source structure can achieve the activity detectingto the space outside of the shielded space through a conceal mountingmanner that extends the columnar radiation source 11P from a shieldedspace corresponding to one side of a metal plate through a through holeto the space outside of the shielded space corresponding to the otherside of the metal plate. Unfortunately, its detecting stability is notgood enough and it has detection dead zone.

SUMMARY OF THE PRESENT INVENTION

An object of the present invention is to provide a microwave-dopplerdetecting module and device thereof, wherein the microwave-dopplerdetecting module is constructed in an antithetically coupling manner soas to have a relatively higher radiation gain and to be capable ofavoiding forming detection dead zone.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting module based on an antithetical couplingstructure comprises at least a pair of antithetical dipoles, wherein thepair of the antithetical dipoles comprises a first radiating source poleand a second radiating source pole, wherein the first radiating sourcepole has a first feed end and is extended from the first feed end as anend, wherein the second radiating source pole has a second feed end andis extended from the second feed end as an end, wherein the first feedend and the second feed end are close to each other, so that when thefirst radiating source pole and the second radiating source pole are fedby the same source at the first feed end and the second feed endrespectively, the first radiating source pole from the first feed endalong the first radiating source pole is correspondingly coupled to thecorresponding positions of the second radiating source pole from thesecond feed end along the second radiating source pole, so as to formthe antithetical coupling arrangement between the first radiating sourcepole and the second radiating source pole.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein when thefirst radiating source pole and the second radiating source pole are fedby the same source at the first feed end and the second feed endrespectively, the second radiating source pole and the first radiatingsource pole create a radiation space based on an antithetical couplingmanner, wherein the radiation space is the coverage area of theelectromagnetic wave radiated by the microwave-doppler detecting module,wherein the radiation space protrudes in the radial direction of theconnection of the first feed end and the second feed end so as to avoidforming a detection dead zone in the direction, which facilitates toenhance the detecting stability and applicability of themicrowave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting module further has an electromagneticreflecting surface, wherein the first radiating source pole and thesecond radiating source pole are arranged spacingly to theelectromagnetic reflecting surface in the space corresponding to theelectromagnetic reflecting surface, so as to utilize the reflectioncharacteristic of the electromagnetic reflecting surface relative to theelectromagnetic wave to form the directional radiation characteristic ofthe microwave-doppler detecting module. Therefore, the microwave-dopplerdetecting module that is construct in an antithetically coupling mannercan create the radiation space in a directional manner, so as to besuitable for sensing and detecting object activity in the directionalspace and to facilitate to avoid the microwave-doppler detecting modulefrom self-activating, which enhances the anti-interference ability ofthe microwave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein the firstradiating source pole utilizes the first feed end as an end thereof andthe second radiating source pole utilizes the second feed end as an endthereof, so that when the first radiating source pole and the secondradiating source pole are fed by the same source at the first feed endand the second feed end respectively, the electric potentials and theelectric currents of the first radiating source pole and the secondradiating source pole are in an antithetical distribution state andsimplified, which facilitates to simplify the data processing of themicrowave-doppler detecting module and to enhance the stability of themicrowave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein based onthe antithetical coupling arrangement, the shape and size of the secondradiating source pole is corresponding to the shape and size of thefirst radiating source pole, so that the first radiating source pole andthe second radiating source pole are free from the limit of thereference plane by a limited area, which means that the shapes and sizesof the first radiating source pole and the second radiating source poleallow various structural implementations rather than plant structurewith restricted area, which facilitates to miniaturize themicrowave-doppler detecting module and to enhance the applicability ofthe microwave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein the shapeand size of the first radiating source pole and the second radiatingsource pole are flexible and variable without being limited by the plantstructure of restricted area, wherein the microwave-doppler detectingmodule is also adaptable for the application scenario of the microwavedetection module of the above mentioned columnar radiation sourcestructure through extending the first radiating source pole and thesecond radiating source pole to a corresponding metal plate, whereincomparing to the microwave detection module of columnar radiation sourcestructure, the present microwave-doppler detecting module has betterstability in the corresponding application scenario.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein byadjusting the shape of the second radiating source pole and the firstradiating source pole, such as through bending and etc., the size of themicrowave-doppler detecting module can be further reduced while the wirelength requirements of the second radiating source pole from the secondfeed end along the second radiating source pole and the first radiatingsource pole from the first feed end along the first radiating sourcepole, which, namely, not only ensures the antithetical coupling of thesecond radiating source pole and the first radiating source pole, butalso enhances the applicability of the microwave-doppler detectingmodule.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein byadjusting the shape of the second radiating source pole and the firstradiating source pole, such as opposite extending the second radiatingsource pole and the first radiating source pole from the connectiondirection of the first feed point and the second feed point andconcurrent extending them toward the direction close to theelectromagnetic reflecting surface and etc., so as to form and constructconditions that the end of the first radiating source pole opposite tothe first feed end is relatively closer to the electromagneticreflecting surface comparing to the first feed end, and the end of thesecond radiating source pole opposite to the second feed end isrelatively closer to the electromagnetic reflecting surface comparing tothe second feed end, wherein the radiation space can correspondingly beadjusted into a condition that the projection thereof in the directionalradiation direction is close to a round shape, which facilitates toenhance the applicability of the microwave-doppler detecting module insensing and detecting of object activities in the directional space invarious scenarios.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein the firstradiating source pole and the second radiating source pole are furthergrounded, so as to reduce the impedance of the microwave-dopplerdetecting module, which means that the quality factor (Q value) of themicrowave-doppler detecting module is increased, so as to facilitate theanti-interference ability of the microwave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting module further comprises a circuit board anda circuit unit loaded on the circuit board, wherein the circuit unitcomprises an oscillation circuit module and a frequency mixing wavedetection unit, wherein the first radiating source pole and the secondradiating source pole are electrically coupled with different poles ofthe oscillation circuit module respectively at the first feed end andthe second feed end. In which, the frequency mixing wave detection unitis electrically coupled with the oscillation circuit module and theantithetical dipoles, so that when the oscillation circuit module ispowered, the first radiating source pole and the second radiating sourcepole are fed by the same source of the oscillation circuit module in aantithetical manner, so as to emit a sounding wave beam in a couplingmanner and receive an echo of the sounding wave beam. The frequencymixing wave detection unit outputs an intermediate-frequency signalcorresponding to the frequency difference between the sounding wave beamand the echo. Then, based on the Doppler Effect, theintermediate-frequency signal is corresponding to the movement of theobject reflecting the sounding wave beam and producing the echocorrespondingly. Hence, the microwave-doppler detecting module issuitable for sensing and detecting object movement.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein theelectromagnetic reflecting surface is loaded on a side of the circuitboard opposite to the side loading the circuit unit, which means thatthe electromagnetic reflecting surface faces toward the antitheticaldipoles and obstructs between the circuit unit and the antitheticaldipoles, so as to utilize the electromagnetic radiation reflectioncharacteristic of the electromagnetic reflecting surface to obstruct theelectromagnetic radiation produced by the coupling of the firstradiating source pole and the second radiating source pole frominterfering the circuit unit, which facilitates to enhance theanti-interference ability of the microwave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting module further comprises a first feeder wireand a second feeder wire, wherein the first radiating source pole iselectrically coupled with the oscillation circuit module at the firstfeed end through the first feeder wire, wherein the second radiatingsource pole is electrically connected with the earth potential of theoscillation circuit module at the second feed end through the secondfeeder wire, so as to form and create a circuit connection relation thatthe first radiating source pole and the second radiating source pole arerespectively electrically coupled with different poles of theoscillation circuit module at the first feed end and the second feed endrespectively and to form and create a structural relation that utilizesthe supports of the first feeder wire and the second feeder wire to thefirst radiating source pole and the second radiating source pole toarrange the antithetical dipoles spacingly to the electromagneticreflecting surface in the space corresponding to the electromagneticreflecting surface.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein thesecond feeder wire encircles the first feeder wire so as to form andcreate an electromagnetic shielding cavity, such that when the secondfeeder wire is grounded, the influence of the coupling between thesecond feeder wire and the first feeder wire to the coupling between thefirst radiating source pole and the second radiating source pole can bereduced and the interference of external electromagnetic radiation tothe first feeder wire can be shielded, which facilitates to enhance theanti-interference ability of the microwave-doppler detecting module.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting device comprises the microwave-dopplerdetecting module and have and an electromagnetic shielding layer,wherein the electromagnetic shielding layer has a through hole, whereinthe circuit board is disposed in a shielded space corresponding to aside of the electromagnetic shielding layer, wherein the first radiatingsource pole and the second radiating source pole are disposed in anotherspace corresponding to another side of the electromagnetic shieldinglayer, wherein the first feeder wire and the second feeder wire passthrough the electromagnetic shielding layer through the through hole toform and construct the circuit connection structure among the firstradiating source pole and the second radiating source pole and thecircuit unit, so as to utilize the arrangement of the first radiatingsource pole and the second radiating source pole in a space outside ofthe shielded space to perform the activity sensing and detecting for thespace outside of the shielded space. In which, thanks to the way of theantithetical coupling of the first radiating source pole and the secondradiating source pole, the projected area of the first radiating sourcepole and the second radiating source pole in the direction perpendicularto the electromagnetic shielding layer can be reduced, which facilitatesthe stealth of the mounting of the microwave-doppler detecting device inthe microwave-doppler detecting device and avoids a LED light board fromcreating a dark zone when the electromagnetic shielding layer isprovided on the LED light board.

Another object of the present invention is to provide amicrowave-doppler detecting module and device thereof, wherein themicrowave-doppler detecting module is able to avoid detection dead zonebased on the antithetical coupling arrangement thereof, that arrangementalso reduces the size requirement of the microwave-doppler detectingmodule, which also facilitate to enhance the stealth and detectingstability of the microwave-doppler detecting module mounted in themicrowave-doppler detecting device.

According to an aspect of the present invention, the present inventionprovides a microwave-doppler detecting module, which includes:

at least one pair of antithetical dipoles, wherein each pair of theantithetical dipoles comprises a first radiating source pole and asecond radiating source pole, wherein the first radiating source polehas a first feed end and is disposed to be a conductor extended from thefirst feed end as an end thereof, wherein the second radiating sourcepole has a second feed end and is disposed to be a conductor extendedfrom the second feed end as an end thereof, wherein the first radiatingsource pole and the second radiating source pole are adapted for beingfed by the same excitation signal feed source at the first feed end andthe second feed end respectively, wherein the first feed end and thesecond feed end approach each other within a range smaller than or equalto λ/32, wherein λ is the wavelength parameter corresponding to the feedsignal frequency of the excitation signal feed source, wherein the firstradiating source pole is configured to satisfy to have a wire lengthgreater than or equal to λ/16 from the first feed end, wherein thesecond radiating source pole is configured to satisfy to have a wirelength greater than or equal to λ/16 from the second feed end, so as toallow the current and potential distribution of the first radiatingsource pole and the second radiating source pole to be presented in anantithetical distribution state to the midpoint of the connection of thefirst feed end and the second feed end when the first radiating sourcepole and the second radiating source pole are fed by the same excitationsignal feed source at the first feed end and the second feed endrespectively, so as to correspondingly couple the first radiating sourcepole from the first feed end along the first radiating source pole withthe corresponding positions of the second radiating source pole from thesecond feed end along the second radiating source pole; and

an electromagnetic reflecting surface, wherein the antithetical dipolesare arranged spacingly to the electromagnetic reflecting surface in thespace corresponding to the electromagnetic reflecting surface, whereinthe distance between the electromagnetic reflecting surface and themidpoint of the connection of the first feed end and the second feed endis greater than or equal to λ/32 and smaller than or equal to λ/2.

According to another aspect of the present invention another, thepresent invention also provides a microwave-doppler detecting device,which includes:

a circuit unit, which comprises an oscillation circuit module and afrequency mixing wave detection unit, wherein the oscillation circuitmodule is configured to be adapted for being powered to output a feedsignal from the feeder pole thereof and being grounded at the groundingpole thereof for being an excitation signal feed source;

a circuit board, wherein the circuit unit is loaded on the circuitboard;

an electromagnetic shielding layer, which has a through hole, whereinthe circuit unit is arranged in a space corresponding to a side of theelectromagnetic shielding layer; and

at least one pair of antithetical dipoles, wherein the antitheticaldipoles are disposed in a space corresponding to another side of theelectromagnetic shielding layer, wherein the pair of antitheticaldipoles comprise a first radiating source pole and a second radiatingsource pole, wherein the first radiating source pole has a first feedend and is disposed to be a conductor extended from the first feed endas an end thereof, wherein the second radiating source pole has a secondfeed end and is disposed to be a conductor extended from the second feedend as an end thereof, wherein the frequency mixing wave detection unitis electrically coupled with the oscillation circuit module and theantithetical dipoles, wherein the first radiating source pole iselectrically coupled with the feeder pole of the oscillation circuitmodule through a first feeder wire penetrating the electromagneticshielding layer through the through hole at the first feed end, whereinthe second radiating source pole is electrically connected with thegrounding pole of the oscillation circuit module through a second feederwire penetrating the electromagnetic shielding layer through the throughhole at the second feed end, wherein the first feed end and the secondfeed end approach each other within a range smaller than or equal toλ/32, wherein λ is the wavelength parameter corresponding to thefrequency of the feed signal, wherein the first radiating source pole isconfigured to satisfy to have a wire length greater than or equal toλ/16 from the first feed end, wherein the second radiating source poleis configured to satisfy to have a wire length greater than or equal toλ/16 from the second feed end, so as to allow the potential distributionof the first radiating source pole and the second radiating source poleto present an antithetical distribution state to the midpoint of theconnection of the first feed end and the second feed end, so as tocorrespondingly couple the first radiating source pole from the firstfeed end along the first radiating source pole with the correspondingpositions of the second radiating source pole from the second feed endalong the second radiating source pole.

Still further objects and advantages will become apparent from aconsideration of the ensuing description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a perspective view illustrating the structure and principleof the microwave detection module of the conventional columnar radiationsource structure.

FIG. 1B is a perspective view illustrating the structure and principleof the microwave detection module of the conventional flat radiationsource structure.

FIG. 2 is a perspective view illustrating the installation structure ofthe microwave detection module of the conventional columnar radiationsource structure mounted on a LED light board.

FIG. 3 is a perspective view illustrating a three-dimensional structureof a microwave-doppler detecting module according to a preferredembodiment of the present invention.

FIG. 4 is a radial direction diagram of the microwave-doppler detectingmodule according to the above preferred embodiment of the presentinvention.

FIG. 5 is a perspective view of the microwave-doppler detecting moduleaccording to an alternative mode of the above preferred embodiment ofthe present invention.

FIG. 6 is a radial direction diagram of the microwave-doppler detectingmodule according to the above alternative mode of the above preferredembodiment of the present invention.

FIG. 7 is a perspective view of the microwave-doppler detecting moduleaccording to another alternative mode of the above preferred embodimentof the present invention.

FIG. 8 is a side sectional view of the microwave-doppler detectingmodule according to the above another alternative mode of the abovepreferred embodiment of the present invention.

FIG. 9 is a perspective view of the microwave-doppler detecting moduleaccording to another alternative mode of the above preferred embodimentof the present invention.

FIG. 10 is a perspective view of the microwave-doppler detecting moduleaccording to another alternative mode of the above preferred embodimentof the present invention.

FIG. 11 is a perspective view of the microwave-doppler detecting moduleaccording to a substitutional structure of the above one morealternative mode of the above preferred embodiment of the presentinvention.

FIG. 12 is a perspective view of the microwave-doppler detecting moduleaccording to a modification of the above substitutional structure of theabove alternative modes of the above preferred embodiment of the presentinvention.

FIG. 13 is a perspective view of a microwave-doppler detecting moduleaccording to an alternative preferred embodiment of the presentinvention.

FIG. 14 is a perspective view of the microwave-doppler detecting moduleaccording to an alternative mode of the above alternative preferredembodiment of the present invention.

FIG. 15 is a perspective view of a microwave-doppler detecting modulehaving a microwave-doppler detecting device mounted thereon according toanother alternative embodiment of the present invention.

FIG. 16 is a perspective view of a microwave-doppler detecting modulehaving a microwave-doppler detecting device mounted thereon according toanother alternative embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following description is disclosed to enable any person skilled inthe art to make and use the present invention. Preferred embodiments areprovided in the following description only as examples and modificationswill be apparent to those skilled in the art. The general principlesdefined in the following description would be applied to otherembodiments, alternatives, modifications, equivalents, and applicationswithout departing from the spirit and scope of the present invention.

Those skilled in the art should understand that, in the disclosure ofthe present invention, terminologies of “longitudinal,” “lateral,”“upper,” “front,” “back,” “left,” “right,” “perpendicular,”“horizontal,” “top,” “bottom,” “inner,” “outer,” and etc. just indicaterelations of direction or position are based on the relations ofdirection or position shown in the appended drawings, which is only tofacilitate descriptions of the present invention and to simplify thedescriptions, rather than to indicate or imply that the referred deviceor element must apply specific direction or to be operated or configuredin specific direction. Therefore, the above-mentioned terminologiesshall not be interpreted as confine to the present invention.

It is understandable that the term “a” should be understood as “at leastone” or “one or more”. In other words, in one embodiment, the number ofan element can be one and in other embodiment the number of the elementcan be greater than one. The term “a” is not construed as a limitationof quantity.

Referring to FIG. 3 of the drawings, a 3D structure of amicrowave-doppler detecting module 10 according to a preferredembodiment of the present invention is illustrated, wherein themicrowave-doppler detecting module 10 comprises at least one pair ofantithetical dipoles 11, wherein the pair of the antithetical dipoles 11comprises a first radiating source pole 111 and a second radiatingsource pole 112, wherein the second radiating source pole 112 has asecond feed end 1121 while the first radiating source pole 111 has afirst feed end 1111, wherein the second feed end 1121 and the first feedend 1111 are close to each other, wherein the second radiating sourcepole 112 is a conductor extended from the second feed end 1121 as anend, while the first radiating source pole 111 is a conductor extendedfrom the first feed end 1111 as an end. In which, the first radiatingsource pole 111 and the second radiating source pole 112 are configuredto be adapted for being fed by the same source at the first feed end1111 and the second feed end 1121 respectively, wherein the second feedend 1121 and the first feed end 1111 are close to each other and satisfythat a distance between the second feed end 1121 and the first feed end1111 is smaller than or equal to λ/32, wherein λ is the wavelengthparameter corresponding to the feed signal frequency. Accordingly, whenthe first radiating source pole 111 and the second radiating source pole112 are fed by the same source at the first feed end 1111 and the secondfeed end 1121 respectively, the first radiating source pole 111 from thefirst feed end 1111 along the first radiating source pole 111 iscorrespondingly coupled to the corresponding positions of the secondfeed end 1121 of the second radiating source pole 112 along the secondradiating source pole 112, so as to form the antithetical couplingarrangement between the first radiating source pole 111 and the secondradiating source pole 112.

It is worth mentioning that, based on the antithetical coupling betweenthe first radiating source pole 111 and the second radiating source pole112, a size requirement for the second radiating source pole 112 and thefirst radiating source pole 111 to couple with each other can bereduced. Specifically, the second radiating source pole 112 and thefirst radiating source pole 111 are configured to satisfy that the wirelengths respectively from the second feed end 1121 and the first feedend 1111 are greater than or equal to λ/16. In other words, the firstradiating source pole 111 is configured to satisfy that the first feedend 1111 and the end opposite to the first feed end 1111 has a wirelength therebetween greater than or equal to λ/16, wherein the secondradiating source pole 112 is configured to satisfy that the second feedend 1121 and the end opposite to the second feed end 1121 has a wirelength therebetween greater than or equal to λ/16. In other words, thefirst radiating source pole 111 and the second radiating source pole 112allow a minimum wire length of λ/16 from the first feed end 1111 and thesecond feed end 1121.

Preferably, the distance between the second feed end 1121 and the firstfeed end 1111 is close to λ/128, so as to reduce the depletion in thecoupling between the first radiating source pole 111 and the secondradiating source pole 112 and correspondingly enhance the gain of themicrowave-doppler detecting module 10.

In particular, according to the disclosure of the preferred embodimentof the present invention, the microwave-doppler detecting module 10 isembodied as example to feedably connect the first radiating source pole111 and the second radiating source pole 112 at the first feed end 1111and the second feed end 1121 respectively with different poles of thesame excitation signal feed source so as to be fed by the same source.

Specifically, according to this embodiment of the present invention, thefirst radiating source pole 111 is feedably connected with the feederpole of the excitation signal feed source at the first feed end 1111 andthe second radiating source pole 112 is electrically connected with thegrounding pole of the excitation signal feed source at the second feedend 1121 so as to be fed by the same source of the excitation signalfeed source with the first radiating source pole 111, wherein the firstradiating source pole 111 from the first feed end 1111 along the firstradiating source pole 111 is correspondingly coupled with thecorresponding positions of the second radiating source pole 112 from thesecond feed end 1121 along the second radiating source pole 112 so as toform and create a radiation space 100, wherein the radiation space 100is the coverage area of the electromagnetic wave radiated by themicrowave-doppler detecting module 10. In which, because the firstradiating source pole 111 from the first feed end 1111 along the firstradiating source pole 111 is correspondingly coupled with thecorresponding positions of the second radiating source pole 112 from thesecond feed end 1121 along the second radiating source pole 112, so thatthe radiation space 100 formed through the antithetical coupling mannercan protrude in a radial direction of the connection of the first feedend 1111 and the second feed end 1121 so as to avoid forming a detectiondead zone in such direction, which facilitates to enhance the detectingstability and applicability of the microwave-doppler detecting module10.

Further, the microwave-doppler detecting module 10 has anelectromagnetic reflecting surface 12, wherein the first radiatingsource pole 111 and the second radiating source pole 112 are arrangedspacingly to the electromagnetic reflecting surface 12 in the spacecorresponding to the electromagnetic reflecting surface 12, so as toutilize the reflection characteristic of the electromagnetic reflectingsurface 12 relative to the electromagnetic wave to form the directionalradiation characteristic of the microwave-doppler detecting module 10.Therefore, the microwave-doppler detecting module 10 is suitable forsensing and detecting object activity in the directional space andfacilitates to avoid the microwave-doppler detecting module 10 fromself-activating, which enhances the anti-interference ability of themicrowave-doppler detecting module 10.

In particular, the electromagnetic reflecting surface 12 is configuredto satisfy that the distance thereto from the midpoint of the connectionof the first feed end 1111 and the second feed end 1121 is greater thanor equal to λ/32 and smaller than or equal to λ/2 and, preferably, closeto λ/4. Therefore, the reflex action of the electromagnetic reflectingsurface 12 for the radiation in the direction from the first radiatingsource pole 111 and the second radiating source pole 112 to theelectromagnetic reflecting surface 12 can be enhanced, so as tofacilitate to extent the detecting distance of the microwave-dopplerdetecting module 10.

Further, based on the structural relations that the first feed end 1111and the second feed end 1121 close to each other, the first radiatingsource pole 111 is extended from the first feed end 1111 as an end, andthe second radiating source pole 112 is extended from the second feedend 1121 as an end, the first radiating source pole 111 and the secondradiating source pole are able to be coupled with each other in anantithetical coupling manner. Correspondingly, the wire length of thesecond radiating source pole 112 is corresponding to the wire length ofthe first radiating source pole 111, so that the second radiating sourcepole 112 is able to be free from the limit of the reference plane of arestricted minimum area, which means that the wire length of the secondradiating source pole 112 corresponding to that of the first radiatingsource pole 111 may have various structural implementations rather thana plane structure with restricted minimum area. That is the structure ofthe microwave-doppler detecting module 10 is diverse, which facilitatesto enhance the applicability of the microwave-doppler detecting module10.

Specifically, according to this embodiment of the present invention, thewire length of the second radiating source pole 112 corresponding to thefirst radiating source pole 111 is configured to be a columnarconductive wire, which may be, but not limited to, round columnarconductive wire, square columnar conductive wire, and etc., wherein thewire length parameter L2 of the second radiating source pole 112 definedbetween the second feed end 1121 and the end opposite to the second feedend 1121 satisfies that λ/16≤L2≤λ. Correspondingly, wire lengthparameter L1 defined on the first radiating source pole 111 between thefirst feed end 1111 and the end opposite to the first feed end 1111satisfies that λ/16≤L1≤λ. In this way, the second radiating source pole112 can be grounded at the second feed end 1121 as an end thereof, sothat when the first radiating source pole 111 is fed at the first feedend 1111 as an end thereof, the first radiating source pole 111 and thesecond radiating source pole 112 can be coupled in an antitheticalcoupling manner.

Preferably, the second radiating source pole 112 and the first radiatingsource pole 111 are configured to satisfy that the wire lengths thereoffrom the second feed end 1121 and the first feed end 1111 respectivelyare close to λ/4 within an error range of λ/128, which means31λ/128≤L1≤33λ/128 and 31λ/128≤L2≤33λ/128. As a result, the firstradiating source pole 111 and the second radiating source pole 112 havewire lengths close to λ/2, which facilitates to enhance the radiationefficiency between the first radiating source pole 111 and the secondradiating source pole 112 and correspondingly facilitates to enhance thegain of the microwave-doppler detecting module 10.

Further, according to this embodiment of the present invention, thefirst radiating source pole 111 and the second radiating source pole 112are disposed symmetrically to the midpoint of the connection of thefirst feed end 1111 and the second feed end 1121. Namely, the firstradiating source pole 111 and the second radiating source pole 112 havethe same shape and size and the positional relation between the firstradiating source pole 111 and the second radiating source pole 112satisfies that the first radiating source pole 111 is able to surroundaround the midpoint of the connection of the first feed end 1111 and thesecond feed end 1121 to turn 180 degrees for at least one direction andto be overlapped with the position of the second radiating source pole112. Accordingly, this facilitates to ensure the coupling between thesecond radiating source pole 112 and the first radiating source pole 111in an antithetical manner as well as facilitates to maintain thesymmetry of the radiation space 100, which correspondingly maintain thestability of the detection range of the microwave-doppler detectingmodule 10.

Specifically, according to this embodiment of the present invention, thefirst radiating source pole 111 and the second radiating source pole 112being configured to be columnar conductive wires are coaxially arranged.In other words, the first radiating source pole 111 is continuallyextended from the second feed end 1121 toward the first feed end 1111and from the first feed end 1111 as an end along the connection of thefirst feed end 1111 to the second feed end 1121. The second radiatingsource pole 112 is continually extended from the first feed end 1111toward the second feed end 1121 and from the second feed end 1121 as anend toward the connection of the first feed end 1111 to the second feedend 1121. Accordingly, the structural relation that the first radiatingsource pole 111 and the second radiating source pole 112 are disposedsymmetrically to the midpoint of the connection of the first feed end1111 and the second feed end 1121.

Further, the microwave-doppler detecting module 10 also comprises acircuit board 13 and a circuit unit 14 loaded on the circuit board 13,wherein the circuit unit 14 comprises a oscillation circuit module 141and a frequency mixing wave detection unit 142, wherein the firstradiating source pole 111 and the second radiating source pole 112 areelectrically coupled with different poles of the oscillation circuitmodule 141 respectively at the first feed end 1111 and the second feedend 1121. Specifically, the first radiating source pole 111 is feedablyconnected with the feeder pole of the oscillation circuit module 141 atthe first feed end 1111, while the second radiating source pole 112 iselectrically connected with the grounding pole of the oscillationcircuit module 141 at the second feed end 1121. In which, the frequencymixing wave detection unit 142 is electrically coupled with theoscillation circuit module 141 and the antithetical dipoles 11, whereinthe oscillation circuit module 141 is allowed to be powered to output afeed signal from the feeder pole thereof and to ground the groundingpole thereof. In other words, the oscillation circuit module 141 isallowed to be powered so as to be an excitation signal feed source, suchthat when the oscillation circuit module 141 is powered, the firstradiating source pole 111 and the second radiating source pole 112 arefed by the same source of the oscillation circuit module 141 at thefirst feed end 1111 and the second feed end 1121 respectively, so as toemit a sounding wave beam and receive an echo of the sounding wave beam.In which, an echo signal is generated correspondingly to the receivingof the echo. The frequency mixing wave detection unit 142 outputs anintermediate-frequency signal corresponding to the frequency differencebetween the feed signal and the echo signal. Then, based on the DopplerEffect, the intermediate-frequency signal is corresponding to themovement of the object reflecting the sounding wave beam and producingthe echo correspondingly. Hence, the microwave-doppler detecting moduleis suitable for sensing and detecting object movement.

It is worth mentioning that the first radiating source pole 111 and thesecond radiating source pole 112 respectively utilize the first feed end1111 and the second feed end 1121 as the ends thereof so that when thefirst radiating source pole 111 and the second radiating source pole 112are fed by the same source at the first feed end 1111 and the secondfeed end 1121 respectively, the electric potentials and the electriccurrents of the first radiating source pole 111 the second radiatingsource pole 112 are in an antithetical distribution state, which iscorresponding to the antithetical coupling between the second radiatingsource pole 112 and the first radiating source pole 111. Namely, thecoupling between the second radiating source pole 112 and the firstradiating source pole 111 is simplified. Therefore, the correspondingdata processing of the microwave-doppler detecting module 10 can besimplified as well, such as that the correlations between theintermediate-frequency signal output by the frequency mixing wavedetection unit 142 and the corresponding object movement is increased,so as to simplify the corresponding data processing of themicrowave-doppler detecting module 10. This facilitates to lower thecosts of the microwave-doppler detecting module 10 and increase thestability and accuracy of the microwave-doppler detecting module 10.

In particular, according to this embodiment of the present invention,the electromagnetic reflecting surface 12 is obstructed between thecircuit unit 14 and the first radiating source pole 111 and the secondradiating source pole 112, so that the electromagnetic radiationproduced by the coupling of the first radiating source pole 111 and thesecond radiating source pole 112 radiated from the first radiatingsource pole 111 and the second radiating source pole 112 toward thecircuit unit 14 can be reflected by the electromagnetic reflectingsurface 12 in order to avoid interference to the circuit unit 14, whichfacilitates to enhance the anti-interference ability of themicrowave-doppler detecting module 10.

Specifically, according to this embodiment of the present invention, theelectromagnetic reflecting surface 12 is loaded on the side of thecircuit board 13 opposite to the side loading the circuit unit 14. Inother words, the electromagnetic reflecting surface 12 is formed on acorresponding conductive layer (e.g. copper layer and etc.) on the sideof the circuit board 13 opposite to the side loading the circuit unit14. In which, the first radiating source pole 111 and the secondradiating source pole 112 are arranged spacingly to the electromagneticreflecting surface 12 in the space corresponding to the electromagneticreflecting surface 12, so as to utilize the electromagnetic wavereflection characteristic of the electromagnetic reflecting surface 12and the structural relation that the first radiating source pole 111 andthe second radiating source pole 112 are arranged spacingly to theelectromagnetic reflecting surface 12 in the space corresponding to theelectromagnetic reflecting surface 12 to create a directional radiationcharacteristic of the microwave-doppler detecting module 10 from theelectromagnetic reflecting surface 12 toward the directions of the firstradiating source pole 111 and the second radiating source pole 112. Inother words, it correspondingly creates the sensing direction of themicrowave-doppler detecting module 10 from the electromagneticreflecting surface 12 toward the directions of the first radiatingsource pole 111 and the second radiating source pole 112, so that themicrowave-doppler detecting module 10 is adapted for detecting andsensing the object activity in the directional space corresponding tothe sensing direction. Besides, it also facilitates to avoid themicrowave-doppler detecting module 10 from self-activating and avoid theelectromagnetic radiation produced from the coupling between the firstradiating source pole 111 and the second radiating source pole 112 frominterfering the circuit unit 14 loaded on the circuit board 13, so as toenhance the anti-interference ability of the microwave-doppler detectingmodule.

In other words, based on the antithetical coupling mode between thefirst radiating source pole 111 and the second radiating source pole112, the microwave-doppler detecting module 10 has a radiation directioncorresponding to the radial direction of the connection of the firstfeed end 1111 and the second feed end 1121, so that when theelectromagnetic reflecting surface 12 is provided at the radiationdirection, the radiation from the first radiating source pole 111 andthe second radiating source pole 112 toward the electromagneticreflecting surface 12 can be reflected to construct the sensingdirection of the microwave-doppler detecting module 10 from theelectromagnetic reflecting surface 12 toward the first radiating sourcepole 111 and the second radiating source pole 112 as well as to enhancethe electromagnetic radiation of the sensing direction, whichfacilitates to enhance the directional detection range of themicrowave-doppler detecting module 10.

In particular, the electromagnetic reflecting surface 12 is preferablyconfigured to satisfy that the size thereof parallel to the direction ofthe connection of the first feed end 1111 and the second feed end 1121is greater than or equal to λ/4 and the size thereof perpendicular tothat direction of connection is greater than or equal to λ/4 as well, soas to enhance the reflex action of the electromagnetic reflectingsurface 12 for the radiation of the direction from the first radiatingsource pole 111 and the second radiating source pole 112 toward theelectromagnetic reflecting surface 12.

Further, the microwave-doppler detecting module 10 also comprises afirst feeder wire 15 and a second feeder wire 16, wherein the firstradiating source pole 111 is electrically coupled with the feeder poleof the oscillation circuit module 141 at the first feed end 1111 throughthe first feeder wire 15, wherein the second radiating source pole 112is electrically connected with the grounding pole of the oscillationcircuit module 141 at the second feed end 1121 through the second feederwire 16, so as to form and create a circuit connection structure amongthe first radiating source pole 111 and the second radiating source pole112 and the circuit unit 14 through the first feeder wire 15 and thesecond feeder wire 16 and to form and create a structural relation thatutilizes the supports of the first feeder wire 15 and the second feederwire 16 for the first radiating source pole 111 and the second radiatingsource pole 112 to arrange the first radiating source pole 111 and thesecond radiating source pole 112 spacingly to the electromagneticreflecting surface 12 in the space corresponding to the same side of theelectromagnetic reflecting surface 12.

Specifically, according to this embodiment of the present invention, thefirst radiating source pole 111 is integrally extended from the firstfeed end 1111 on the first feeder wire 15, wherein the second radiatingsource pole 112 is integrally extended from the second feed end 1121 onthe second feeder wire 16. This simplifies the structure of themicrowave-doppler detecting module 10 and facilitates to maintain theuniformity of the impedance of the microwave-doppler detecting module10, so as to benefit the impedance matching of the microwave-dopplerdetecting module 10.

Further, the first feeder wire 15 and the second feeder wire 16 areparallel to each other. The distance between the first feeder wire 15and the second feeder wire 16 corresponding to the distance between thefirst feed end 1111 and the second feed end 1121 satisfies to be smallerthan or equal to λ/32 and, preferably, close to the range of λ/128, sothat when the first radiating source pole 111 and the second radiatingsource pole 112 are fed through the first feeder wire 15 and the secondfeeder wire 16 respectively, the coupling effect between the firstfeeder wire 15 and the second feeder wire 16 can be reduced, so as tofacilitate to reduce the depletion of the first feeder wire 15 and thesecond feeder wire 16. In other words, the echo depletion S11 of thefirst feeder wire 15 and the second feeder wire 16 is reduced, whichfacilitates to enhance the gain of the microwave-doppler detectingmodule 10.

Referring to FIG. 4 , the radiation direction of the microwave-dopplerdetecting module 10 corresponding to the radiation space 100 accordingto the above embodiment of the present invention is illustrated. Basedon the figure, the microwave-doppler detecting module 10 has a radiationgain greater than 7 dB in the directional radiation direction, which isthe direction perpendicular to the plane of the X-axis and the Y-axis onthe figure. Besides, the radiation space 100 protrudes from thedirection. Correspondingly, the projection of the radiation space 100presents a closely complete oval shape, which is different frommicrowave detection modules of conventional columnar radiation sourcestructure which projection in the directional radiation directionthereof presents a ring shape with a detection dead zone in the middlethereof. The radiation space 100 of the microwave-doppler detectingmodule 10 protrudes in the directional radiation direction to avoidforming a detection dead zone.

In particular, based on the adjustment of the positional relationbetween the first radiating source pole 111 and the second radiatingsource pole 112, the radiation space 100 may be adjusted tocorrespondingly change the angle and direction of the detection of themicrowave-doppler detecting module 10 from the electromagneticreflecting surface 12 toward the direction of the first radiating sourcepole 111 and the second radiating source pole 112, so as to enhance theapplicability of the microwave-doppler detecting module 10.

According to one embodiment, the positional relation between the firstradiating source pole 111 and the second radiating source pole 112 iscapable of being adjusted through adjusting the first radiating sourcepole 111 and the second radiating source pole 112 to turn around thefirst feed end 1111 and the second feed end 1121 respectively. Accordingto one embodiment of the present invention, the first radiating sourcepole 111 and the second radiating source pole 112 are respectivelyturned around the first feed end 1111 and the second feed end 1121 inthe direction close to the electromagnetic reflecting surface 12 foradjustment. That is the first radiating source pole 111 is configured tobe a columnar conductive wire extended from the first feed end 1111 asan end toward the connection direction of the second feed end 1121 tothe first feed end 1111 and toward the direction of the electromagneticreflecting surface 12 at the same time, wherein the second radiatingsource pole 112 is configured to be a columnar conductive wire extendedfrom the second feed end 1121 as an end toward the connection directionof the first feed end 1111 to the second feed end 1121 and toward thedirection of the electromagnetic reflecting surface 12.

It is worth mentioning that by adjusting the shape of the secondradiating source pole 112 and the first radiating source pole 111, suchas through bending the second radiating source 112 and the firstradiating source pole 111 to adjust their shapes, the size of themicrowave-doppler detecting module 10 can be further reduced while thewire length parameter L2 of the second radiating source pole 112satisfies that λ/16≤L2≤λ and the wire length parameter L1 of the firstradiating source pole 111 satisfies that λ/16≤L1≤λ. In other words,while the antithetical coupling between the second radiating source pole112 and the first radiating source pole 111 is ensured, it facilitatesto reduce the size of the microwave-doppler detecting module 10. Inparticular, based on the adjustment of the shape of the first radiatingsource pole 111 and the second radiating source pole 112 or theadjustment of the positional relation between the first radiating sourcepole 111 and the second radiating source pole 112, the radiation space100 can be adjusted to correspondingly change the coverage area of theelectromagnetic wave radiated by the microwave-doppler detecting module10, so as to enhance the applicability of the microwave-dopplerdetecting module 10.

For example, referring to FIG. 5 of the drawings, the adjustment of theshapes of the first radiating source pole 111 and the second radiatingsource pole 112 for the microwave-doppler detecting module 10 accordingto an alternative mode of the above preferred embodiment of the presentinvention is illustrated. According to this alternative mode of thepresent invention, the first radiating source pole 111 is extended fromthe first feed end 1111 to the direction of the second feed end 1121 tothe first feed end 1111 and the direction close to the electromagneticreflecting surface 12, while the second radiating source pole 112 isextended from the second feed end 1121 to the direction of the firstfeed end 1111 to the second feed end 1121 and the direction close to theelectromagnetic reflecting surface 12. In other words, the adjustment ofthe shapes of the first radiating source pole 111 and the secondradiating source pole 112 forms the conditions that the end of the firstradiating source pole 111 opposite to the first feed end 1111 is,comparing to the first feed end 1111, closer to the electromagneticreflecting surface 12 and that the end of the second radiating sourcepole 112 opposite to the second feed end 1121 is, comparing to thesecond feed end 1121, closer to the electromagnetic reflecting surface12.

Especially, the first radiating source pole 111 is extended from thefirst feed end 1111 to the direction of the second feed end 1121 to thefirst feed end 1111 and the direction approaching the electromagneticreflecting surface 12. The second radiating source pole 112 is extendedfrom the second feed end 1121 to the direction of the first feed end1111 to the second feed end 1121 and the direction approaching theelectromagnetic reflecting surface 12. The sizes corresponding to thefirst radiating source pole 111 and the second radiating source pole 112in a direction perpendicular to the electromagnetic reflecting surface12 are both within the range of being greater than or equal to λ/32 andsmaller than or equal to λ/4, so as to ensure the antithetical couplingof the first radiating source pole 111 and the second radiating sourcepole 112 and to reduce the size of the microwave-doppler detectingmodule 10 based on the size arrangement corresponding to the firstradiating source pole 111 and the second radiating source pole 112 inthe direction perpendicular to the electromagnetic reflecting surface 12as well as to allow the radiation space 100 of the microwave-dopplerdetecting module 10 to be adjusted.

Specifically, according to this alternative mode of the presentinvention, the first radiating source pole 111 and the second radiatingsource pole 112 are each bent for once. Corresponding to the bent firstradiating source pole 111 is extended from the first feed end 1111 alonga direction from the second feed end 1121 toward the first feed end 1111and then extended in another direction towards the electromagneticreflecting surface 12, the bent second radiating source pole is extendedfrom the second feed end 1121 along a direction from the first feed end1111 towards the second feed end 1121 and then extended in anotherdirection towards the electromagnetic reflecting surface 12.Accordingly, the first and second radiating source poles 111, 112 arecorrespondingly formed in such a manner that one end of the firstradiating source pole 111, opposite to the first feed end 1111, iscloser to the electromagnetic reflecting surface 12 with respect to thefirst feed end 1111, and that one end of the second radiating sourcepole 112, opposite to the second feed end 1121, is closer to theelectromagnetic reflecting surface 12 with respect to the second feedend 1121.

Hence, according to this alternative mode of the preferred embodiment ofthe present invention, the size of the portion of the first radiatingsource pole 111 along a direction perpendicular to the electromagneticreflecting surface 12 is arranged with respect to the distance L11 fromthe end of the first radiating source pole 111 relative to the firstfeed end 1111 and the bent position of the first radiating source pole111, where the L11 satisfies that λ/32≤L11≤λ/4. The size of the portionof the second radiating source pole 112 along a direction perpendicularto the electromagnetic reflecting surface 12 is arranged with respect tothe distance L21 from the end of the second radiating source pole 112relative to the second feed end 1121 and the bent position of the secondradiating source pole 112, where the L21 satisfies that λ/32≤L21≤λ/4.Based on the size arrangements corresponding to the L11 and the L21, theradiation space 100 of the microwave-doppler detecting module 10 can beadjusted and the gain of the corresponding microwave-doppler detectingmodule 10 can be adjusted as well.

Referring to FIG. 6 of the drawings of the present invention, theradiation direction of the microwave-doppler detecting module 10corresponding to the radiation space 100 according to the abovealternative mode of the preferred embodiment of the present invention isillustrated. According to the figure, the microwave-doppler detectingmodule 10 also has a radiation gain greater than 7 dB in the directionalradiation direction, which is the direction perpendicular to the planeof the X-axis and the Y-axis in the figure. Especially, a differencefrom the radiation space 100 of the microwave-doppler detecting moduleof the above preferred embodiment is that, according to this alternativemode of the present invention, based on the adjustment of the shapes ofthe first radiating source pole 111 and the second radiating source pole112, under the conditions that the end of the first radiating sourcepole 111 opposite to the first feed end 1111 is, with respect to thefirst feed end 1111, closer to the electromagnetic reflecting surface 12and that the end of the second radiating source pole 112 opposite to thesecond feed end 1121 is, with respect to the second feed end 1121,closer to the electromagnetic reflecting surface 12, the radiation space100 is adjusted into a condition that a cross section thereofperpendicular to the directional radiation direction is close to a fulland complete circle, so as to facilitates to enhance the applicabilityof the detection of the microwave-doppler detecting module 10 for theobject activities in the directional space in various application sites.In addition, another difference from the conventional microwavedetection module of columnar radiation source structure and microwavedetection module of flat radiation source structure which cross sectionperpendicular to the directional radiation direction thereof is in aring-shape that has a detection dead zone in the middle thereof is thatthe radiation space 100 of the microwave-doppler detecting module 10protrudes at the directional radiation direction, which avoids detectiondead zone.

It is worth mentioning that, according to the above alternative mode,there are structural relations that the first radiating source pole 111is extended from the first feed end 1111 toward the direction of thesecond feed end 1121 to the first feed end 1111 and toward the directionof the electromagnetic reflecting surface 12, and that the secondradiating source pole 112 is extended from the second feed end 1121toward the direction of the first feed end 1111 to the second feed end1121 and toward the direction of the electromagnetic reflecting surface12. In one alternative mode of the preferred embodiment of the presentinvention, the first radiating source pole 111 is extended from thefirst feed end 1111 as an end towards the direction of the second feedend 1121 to the first feed end 1111 and the direction close to theelectromagnetic reflecting surface 12 at the same time, and that thesecond radiating source pole 112 is extended from the second feed end1121 as an end toward the direction of the first feed end 1111 to thesecond feed end 1121 and the direction close to the electromagneticreflecting surface 12 at the same time, so as to form and create acondition that the end of the second radiating source pole 112 oppositeto the second feed end 1121, with respect to the second feed end 1121,is closer to the electromagnetic reflecting surface 12, whichfacilitates to adjust the radiation space 100 into a condition that thecross section thereof perpendicular to the directional radiationdirection is close to a full and complete circle, so as to enhance theapplicability of the detection of the microwave-doppler detecting module10 for the object activities in the directional space in variousapplication sites.

For example, according to some embodiments of the present invention, thefirst radiating source pole 111 and the second radiating source pole 112are arranged in a bending manner. Specifically, the first radiatingsource pole 111 is a columnar curvy conductive wire formed throughextending from the first feed end 1111 as an end along a connectiondirection from the second feed end 1121 towards the first feed end 1111and a direction towards the electromagnetic reflecting surface 12 at thesame time, wherein the second radiating source pole 112 is a columnarcurvy conductive wire formed through extending from the second feed end1121 as an end along a connection direction from first feed end 1111towards the second feed end 1121 and a direction towards theelectromagnetic reflecting surface 12 at the same time.

In other words, the curvy shape of the first radiating source pole 111is a result that the second feed end 1121 extends toward the connectiondirection of the first feed end 1111 and the direction towards theelectromagnetic reflecting surface 12 in a nonlinear manner. Similarly,the curvy shape of the second radiating source pole 112 is a result thatthe first feed end 1111 extends toward the connection direction of thesecond feed end 1121 and the direction towards the electromagneticreflecting surface 12 in a nonlinear manner. For an example, each of thefirst radiating source pole 111 and the second radiating source pole 112is bent towards the direction closer to the electromagnetic reflectingsurface 12 to form the columnar curvy conductive wire. For anotherexample, each of the first radiating source pole 111 and the secondradiating source pole 112 is bent in the direction deviating from theelectromagnetic reflecting surface 12 to form columnar curvy conductivewires.

Further, referring to FIGS. 7 and 8 of the drawings of the presentinvention, the microwave-doppler detecting module 10 according toanother alternative mode of the above preferred embodiment of thepresent invention is illustrated. Particularly, according to thisanother alternative mode of the preferred embodiment of the presentinvention, the first feeder wire 15 has a first feeder section 151 andthe second feeder wire 16 has a second feeder section 165. The firstfeeder section 151 and the second feeder section 165 are parallelcolumnar straight conductive wires extended from the first feed end 1111and the second feed end 1121 respectively, so that a distance betweenthe first feeder section 151 and the second feeder section 165 and acorresponding distance between the first feed end 1111 and the secondfeed end 1121 satisfies to be smaller than or equal to λ/32 and a rangepreferably close to λ/128, so that coupling function between the firstfeeder section 151 and the second feeder section 165 can be reduced,which facilitates to reduce the depletion of the first feeder wire 15and the second feeder wire 16. In other words, the echo depletion S11 ofthe first feeder wire and the second feeder wire is reduced, whichfacilitates to further enhance the gain of the microwave-dopplerdetecting module 10.

In particular, according to this another alternative mode of thepreferred embodiment of the present invention, the first feeder wire 15further has a first coupling section 152 integrally extended from thefirst feeder section 151, and the second feeder wire 16 further has asecond coupling section 166 integrally extended from the second feedersection 165. In other words, the first feeder section 151 iselectrically coupled with the oscillation circuit module 141 andaffixedly coupled with the circuit board 13 through the first couplingsection 152, and that the second feeder section 165 is electricallycoupled with the earth potential of the oscillation circuit module 141and affixedly coupled with the circuit board 13 through the secondcoupling section 166. The first coupling section 152 is integrallyextended from the first feeder section 151 in a direction deviating fromthe first feeder section 151. The second coupling section 166 isintegrally extended from the second feeder section 165 in a directiondeviating from the second feeder section 165. Therefore, the lengths ofthe first feeder wire 15 and the second feeder wire 16 can be configuredthrough the designs of the lengths and shapes of the first couplingsection 152 and the second coupling section 166 respectively, so as tofacilitate to not only satisfy the impedance matching and correspondingresonance frequency design of the microwave-doppler detecting module 10based on the arrangement of the corresponding lengths of the firstfeeder wire 15 and the second feeder wire 16, but also maintain thedistance between the electromagnetic reflecting surface 12 and amidpoint of the connection of the first feed end 1111 and the secondfeed end 1121 in a proper range, such as being greater than or equal toλ/32 and smaller than or equal to λ/2 or close to the preferable rangeof λ/4, based on the shape design of the first coupling section 152 andthe second coupling section 166. That is, based on the design of thelengths and shapes of the first coupling section 152 and the secondcoupling section 166, the microwave-doppler detecting module 10 is ableto not only satisfy the corresponding impedance matching and resonancefrequency design, but also enhance the reflex action of theelectromagnetic reflecting surface 12 for the radiation in the directionfrom the first radiating source pole 111 and the second radiating sourcepole 112 to the electromagnetic reflecting surface 12, so as tofacilitate to extent the detecting distance of the microwave-dopplerdetecting module 10.

In other words, based on the designs of the shapes and the lengths ofthe first coupling section 152 and the second coupling section 166, thedistance between the electromagnetic reflecting surface 12 and themidpoint of the connection of the first feed end 1111 and the secondfeed end 1121 can be maintained or shortened within the range greaterthan or equal to λ/32 and smaller than or equal to λ/2. Besides, themicrowave-doppler detecting module 10 can satisfy the correspondingimpedance matching and the resonance frequency design. Hence, themicrowave-doppler detecting module 10 is able to not only satisfy thecorresponding impedance matching and the resonance frequency design, butalso have higher gain.

Further, according to this another alternative mode of the preferredembodiment of the present invention, the first coupling section 152 andthe second coupling section 166 integrally extended away from the firstfeeder section 151 and the second feeder section 165 respectively, sothat the distance between the first coupling section 152 and the secondcoupling section 166 in the directions perpendicular to the first feedersection 151 and the second feeder section 165 is larger than thedistance between the first feeder section 151 and the second feedersection 165, so that the first feeder section 151 and the second feedersection 165 which are parallel to each other are in a condition ofclosing to each other within a distance smaller than or equal to λ/32,which facilitates to electrically couple the first feeder wire 15 withoscillation circuit module 141 at the first coupling section 152 throughwelding and soldering and to affixedly couple the first feeder wire 15with the circuit board 13 as well as to electrically couple the secondfeeder wire 16 with the earth potential of the oscillation circuitmodule 141 at the second coupling section 166 through welding andsoldering and affixedly couple the second feeder wire 16 with thecircuit board 13.

Specifically, according to this another alternative mode of thepreferred embodiment of the present invention, the distance of the firstcoupling section 152 and the second coupling section 166 in thedirection perpendicular to the first feeder section 151 and the secondfeeder section 165 is smaller than or equal to λ/8. The distance of thefirst coupling section 152 and the second coupling section 166 in thedirection parallel to the first feeder section 151 and the second feedersection 165 is also smaller than or equal to λ/8. Therefore, it not onlyensures the low loss characteristic between the first feeder section 151and the second feeder section 165 so as to be capable of satisfying thecorresponding impedance matching and resonance frequency design based onthe design of the lengths and shapes of the first coupling section 152and the second coupling section 166, but also reinforces the reflexaction of the electromagnetic reflecting surface 12 for the radiationsof the directions from the first radiating source pole 111 and thesecond radiating source pole 112 toward the electromagnetic reflectingsurface 12.

It is worth mentioning that, according to this another alternative modeof the preferred embodiment of the present invention, the first couplingsection 152 is extended from the end of the first feeder section 151that is opposite to the first feed end 1111 toward a directionperpendicular to the first feeder section 151 and then toward anotherdirection parallel to the first feeder section 151, while the secondcoupling section 166 is extended from the end of the second feedersection 165 that is opposite to the second feed end 1121 toward adirection perpendicular to the second feeder section 165 and then towardanother direction parallel to the second feeder section 165. In someembodiments of the present invention, the first coupling section 152 maybe configured to be extended from the end of the first feeder section151 that is opposite to the first feed end 1111 toward a directionperpendicular to the first feeder section 151 and a direction parallelto the first feeder section 151 at the same time. For example, the firstcoupling section 152 can be a columnar curvy conductive wire extendedfrom the end of the first feeder section 151 that is opposite to thefirst feed end 1111 to the direction perpendicular to the first feedersection 151 and the direction parallel to the first feeder section 151at the same time. Similarly, the second coupling section 166 may beconfigured to be extended from the end of the second feeder section 165that is opposite to the second feed end 1121 to the directionperpendicular to the second feeder section 165 and the directionparallel to the second feeder section 165 at the same time. For example,the second coupling section 166 can be a columnar curvy conductive wireextended from the end of the second feeder section 165 that is oppositeto the second feed end 1121 to the direction perpendicular to the secondfeeder section 165 and the direction parallel to the second feedersection 165 at the same time. The present invention shall not be limitedhere.

Further, according to this another alternative mode of the preferredembodiment of the present invention, the high gain microwave-dopplerdetecting module 10 further comprises a fixing base 17. The fixing base17 is attached on a side of the circuit board 13 having theelectromagnetic reflecting surface 12 provided thereon. The first feederwire 15 and the second feeder wire 16 are partially clamped and affixedto the fixing base 17, so as to facilitates to maintain the first feedersection 151 and the second feeder section 165 in a parallel manner and acondition close to each other within a distance smaller than or equal toλ/32, that facilitates to maintain the uniformity in producing and thestability in utilizing of the high gain microwave-doppler detectingmodule 10.

Further, referring to FIG. 9 of the drawings of the present invention,the microwave-doppler detecting module 10 according to anotheralternative mode of the above preferred embodiment of the presentinvention. In particular, according to this alternative mode of thepreferred embodiment of the present invention, the second feeder wire 16encircles and surrounds the first feeder wire 15 so as to form andcreate an electromagnetic shielding cavity 161, such that when thesecond feeder wire 16 is grounded, the influence of the coupling betweenthe second feeder wire 16 and the first feeder wire 15 to the couplingbetween the first radiating source pole 111 and the second radiatingsource pole 112 can be reduced and the interference of externalelectromagnetic radiation to the first feeder wire 15 can be shielded,that thereby facilitates to enhance the anti-interference ability of themicrowave-doppler detecting module 10.

Preferably, the second feeder wire 16 is arranged being surrounded andencircled by the first feeder wire 15 coaxially, so that when the firstradiating source pole 111 is fed at the first feed end 1111 through thefirst feeder wire 15 and the second radiating source pole 112 is fed atthe second feed end 1121 through the second feeder wire 16, the couplingbetween the first radiating source pole 111 and the second radiatingsource pole 112 in an antithetical manner is facilitated.

Especially, on the basis of the condition that the second radiatingsource pole 112 is grounded according to the above embodiment, accordingto some embodiments, the first radiating source pole 111 is furthergrounded, so as to reduce the impedance of the microwave-dopplerdetecting module, so that the quality factor (Q value) of themicrowave-doppler detecting module can be increased, which facilitatesthe anti-interference ability of the microwave-doppler detecting module.

Referring to FIG. 10 , the 3D structure of the microwave-dopplerdetecting module 10 according to another alternative mode of the aboveembodiment of the present invention is illustrated. Particularly,comparing to the above preferred embodiment and its alterative modes,according to this alternative mode of the present invention, the firstradiating source pole 111 is further electrically connected with thesecond feeder wire 16 so as to be grounded.

Specifically, according to this alternative mode of the presentinvention, the second feeder wire 16 is arranged to surround around thefirst feeder wire 15 coaxially and further has a pair of notch positions162. The second feeder wire 16 has a pair of notches formed at the notchpositions 162 and extended from the end connected with the secondradiating source pole 112 along a direction of the first feeder wire 15.The pair of the notch positions 162 defines a first arm 163 and a secondarm 164 of the second feeder wire 16. That is, the first arm 163 and thesecond arm 164 are two portions of the second feeder wire 16 wherein thepair of the notch positions 162 is defined therebetween. The secondradiating source pole 112 is conductively extended from the second feedend 1121 to the second arm 164 of the second feeder wire 16. The firstradiating source pole 111 is conductively extended from the first feedend 1111 to the first arm 163 of the second feeder wire 16 and isconductively connected with the first feeder wire 15 at the first feedend 1111, so as to create a condition that the first radiating sourcepole 111 is grounded.

It is worth mentioning that, a notch depth of each of the notches of thesecond feeder wire 16 from the end of the second feeder wire 16connected with the second radiating source pole 112 along the directionof the first feeder wire 111 is greater than or equal to λ/128, so thatwhen the first radiating source pole 111 is grounded through the firstarm 163 of the second feeder wire 16, the first radiating source pole111 can be fed and excited at the first feed end 1111 through the firstfeeder wire 15, and the second radiating source pole 112 can be fed atthe second feed end 1121 through the second feeder wire 16 at the sametime, so as to facilitate coupling between the first radiating sourcepole 111 and the second radiating source pole 112 in an antitheticalmanner.

It is understandable that, based on the arrangement of the depth of thenotches 162, corresponding impedance can be created, so as to facilitatethe impedance matching between the antithetical dipoles 11 and the firstfeeder wire 15 and the second feeder wire 16 and the oscillation circuitmodule 141.

Especially, according to this alternative mode of the present invention,the first radiating source pole 111 and the second radiating source pole112 are bent for once, so as to maintain that the wire length parameterL2 of the second radiating source pole 112 satisfies λ/16≤L2≤λ and thatthe wire length parameter L1 of the first radiating source pole 111satisfies λ/16≤L1≤λ at the same time, so that the sizes of the secondradiating source pole 112 and the first radiating source pole 111parallel to the direction of the connection of the first feed end 1111and the second feed end 1121 can be reduced.

Further, referring to FIG. 11 of the drawings of the present invention,based on the concept that the second feeder wire 16 is configured as adismountable tubular structure, an alternative structure for themicrowave-doppler detecting module corresponding to that as illustratedin the FIG. 10 is illustrated. A difference to the microwave-dopplerdetecting module 10 as illustrated in FIG. 10 is that, according to thisalternative structure of the present invention, the second feeder wire16 is configured as a dismountable square tubular structure, which meansthat the second feeder wire 16 is a square tubular structure that can beassembled in a buckling manner or other dismountable manner.

Further referring to FIG. 12 of the drawings of the present invention,based on the concept that the second feeder wire 16 is configured as adismountable tubular structure, FIG. 12 illustrates another alternativestructure for the microwave-doppler detecting module corresponding tothat in the FIG. 11 . According to this alternative structure, the endof the first radiating source pole 111 that is opposite to the firstfeed end 1111 is further extended toward two opposite directionsperpendicular to the connection of the first feed end 1111 and thesecond feed end 1121, and that the end of the second radiating sourcepole 112 that is opposite to the second feed end 1121 is furtherextended toward the two opposite directions perpendicular to theconnection of the first feed end 1111 and the second feed end 1121, soas to suppress the energy accumulation at the end of the first radiatingsource pole 111 opposite to the first feed end 1111 and to suppress theenergy accumulation at the end of the second radiating source pole 112opposite to the second feed end 1121 when the first radiating sourcepole 111 and the second radiating source pole 112 are antitheticallycoupled, so as to facilitate to maintain the stability of themicrowave-doppler detecting module 10.

In order to further disclose the present invention, referring to FIG. 13of the drawings of the present invention, the 3D structure of anothermicrowave-doppler detecting module 10A according to another preferredembodiment of the present invention is illustrated. Similarly, themicrowave-doppler detecting module 10A comprises a second radiatingsource pole 112A and a first radiating source pole 111A, wherein thesecond radiating source pole 112A has a second feed end 1121A, while thefirst radiating source pole 111A has a first feed end 1111A, wherein thesecond feed end 1121A and the first feed end 1111A are close to eachother within a distance of λ/4, wherein the second radiating source pole112A is extended from the second feed end 1121A as one end, wherein thefirst radiating source pole 111A is extended from the first feed end1111A as one end, wherein the first radiating source pole 111A isconfigured to be adapted for being fed at the first feed end 1111A,wherein the second radiating source pole is configured to be adapted forbeing fed at the second feed end 1121A, so that when the first radiatingsource pole 111A is fed at the first feed end 1111A and the secondradiating source pole 112A is fed by the same source at the second feedend 1121A, the first radiating source pole 111A from the first feed end1111A along the first radiating source pole 111A is correspondinglycoupled to the corresponding positions of the second radiating sourcepole 112A from the second feed end 1121A along the second radiatingsource pole 112A, so as to form the antithetical coupling arrangementbetween the first radiating source pole 111A and the second radiatingsource pole 112A.

A difference from the above preferred embodiment is that, according tothis another preferred embodiment of the present invention, themicrowave-doppler detecting module 10A further comprises a mediumsubstrate 18A, wherein the first radiating source pole 111A and thesecond radiating source pole 112A is provided on the same side of themedium substrate 18A in a form of microstrip line, so that the shapesand sizes of the first radiating source pole 111A and the secondradiating source pole 112A can correspondingly be implemented easilybased on the technology of microstrip line.

The microwave-doppler detecting module 10A also comprises a circuitboard 13A and a circuit unit 14A provided on the circuit board 13A,wherein the circuit unit 14A comprises an oscillation circuit module141A and a frequency mixing wave detection unit 142A, wherein the firstradiating source pole 111A and the second radiating source pole 112A areelectrically coupled with different poles of the oscillation circuitmodule 141A respectively at the first feed end 1111A and the second feedend 1121A. Specifically, the first radiating source pole 111A isfeedably connected with the feeder pole of the oscillation circuitmodule 141A at the first feed end 1111A, while the second radiatingsource pole 112A is electrically connected with the grounding pole ofthe oscillation circuit module 141A at the second feed end 1121A. Inwhich, the frequency mixing wave detection unit 142A is electricallycoupled with the oscillation circuit module 141A and the antitheticaldipoles 11A, wherein the oscillation circuit module 141A is allowed tobe powered to output a feed signal from the feeder pole thereof and toground the grounding pole thereof. In other words, the oscillationcircuit module 141A is allowed to be powered so as to be an excitationsignal feed source, such that when the oscillation circuit module 141Ais powered, the first radiating source pole 111A and the secondradiating source pole 112A are fed by the same source of the oscillationcircuit module 141A at the first feed end 1111A and the second feed end1121A respectively, so as to emit a sounding wave beam and receive anecho of the sounding wave beam. In which, an echo signal is generatedcorrespondingly to the receiving of the echo. The frequency mixing wavedetection unit 142A outputs an intermediate-frequency signalcorresponding to the frequency difference between the feed signal andthe echo signal. Then, based on the Doppler Effect, theintermediate-frequency signal is corresponding to the movement of theobject reflecting the sounding wave beam and producing the echocorrespondingly. Hence, the microwave-doppler detecting module issuitable for sensing and detecting object movement.

Further, the first radiating source pole 111A and the second radiatingsource pole 112A are disposed symmetrically to a midpoint of theconnection of the first feed end 1111A and the second feed end 1121A.That is the first radiating source pole 111A and the second radiatingsource pole 112A have the same shape and size and the positionalrelation between the first radiating source pole 111A and the secondradiating source pole 112A satisfies that the first radiating sourcepole 111A is able to surround around the midpoint of the connection ofthe first feed end 1111A and the second feed end 1121A to turn 180degrees for at least one direction and to be overlapped with theposition of the second radiating source pole 112A. This facilitates toensure the coupling between the second radiating source pole 112A andthe first radiating source pole 111A in an antithetical manner.

Specifically, according to this another preferred embodiment of thepresent invention, the medium substrate 18A is disposed spacingly to thecircuit board 13A in a manner of being parallel to the circuit board13A.

Specifically, the microwave-doppler detecting module 10A also comprisesa first feeder wire 15A and a second feeder wire 16A, wherein the firstradiating source pole 111A is electrically coupled with the feeder poleof the oscillation circuit module 141A at the first feed end 1111Athrough the first feeder wire 15A, wherein the second radiating sourcepole 112A is electrically connected with the earth potential of theoscillation circuit module 141A at the second feed end 1121A through thesecond feeder wire 16A, so as to form and create a circuit connectionstructure among the first radiating source pole 111A and the secondradiating source pole 112A and the circuit unit 14A and to form andcreate a structural relation that utilizes the supports of the firstfeeder wire 15A and the second feeder wire 16A for the medium substrate18A with the first radiating source pole 111A and the second radiatingsource pole 112A provided thereon to form and create a structuralrelation that the medium substrate 18A is disposed spacingly to thecircuit board 13A.

Especially, according to this another preferred embodiment of thepresent invention, the second feeder wire 16A and the first feeder wire15A are embodied as that the second feeder wire 16A is a shielding wiresurrounding and encircling the first feeder wire 15A, wherein theshielding wire is insertably arranged so as to construct the insertableand connectable circuit connection structure among the first radiatingsource pole 111A and the second radiating source pole 112A and thecircuit unit 14A, which facilitates the assembling of themicrowave-doppler detecting module 10A.

Similarly, the microwave-doppler detecting module 10A further has anelectromagnetic reflecting surface 12A provided on the circuit board13A, wherein the electromagnetic reflecting surface 12A is provided on aside of the circuit board 13A opposite to the other side having thecircuit unit 14A thereon, wherein the radiating source pole 111A and thesecond radiating source pole 112A are arranged spacingly to theelectromagnetism reflecting 12A in a space corresponding to theelectromagnetic reflecting surface 12A, so as to utilize theelectromagnetic wave reflection characteristic of the electromagneticreflecting surface 12A and the structural relation that the firstradiating source pole 111A and the second radiating source pole 112A arearranged spacingly to the electromagnetic reflecting surface 12A in aspace corresponding to the electromagnetic reflecting surface 12A tocreate a directional radiation characteristic of the microwave-dopplerdetecting module 10A from the electromagnetic reflecting surface 12Atoward the directions of the first radiating source pole 111A and thesecond radiating source pole 112A. In other words, with respect to asensing direction of the microwave-doppler detecting module 10A definedfrom the electromagnetic reflecting surface 12A toward the directions ofthe first radiating source pole 111A and the second radiating sourcepole 112A, the microwave-doppler detecting module 10A is adapted fordetecting and sensing the object activity in the directional spacecorresponding to the sensing direction. Besides, it also facilitates toavoid the microwave-doppler detecting module 10A from self-activatingand avoid the electromagnetic radiation produced from the couplingbetween the first radiating source pole 111A and the second radiatingsource pole 112A from interfering the circuit unit 14A provided on thecircuit board 13A, so as to enhance the anti-interference ability of themicrowave-doppler detecting module.

Especially, based on the adjustment of the positional relation betweenthe medium substrate 18A and the circuit board 13A, themicrowave-doppler detecting module 10A may have various structuraldesigns, which facilitates to enhance the applicability of themicrowave-doppler detecting module 10A.

Specifically, referring to FIG. 14 of the drawings of the presentinvention, based on the adjustment of the positional relation betweenthe medium substrate 18A and the circuit board 13A, themicrowave-doppler detecting module 10A according to an alternative modeof the above another preferred embodiment of the present invention isillustrated.

Specifically, according to this alternative mode of the above anotherpreferred embodiment of the present invention, the medium substrate 18Ais perpendicular to the circuit board 13A, wherein the connection of thefirst feed end 1111A and the second feed end 1121A is parallel to thecircuit board 13A. In other words, based on the positional relation ofthe medium substrate 18A parallel to the circuit board 13A, according tothis alternative mode, the medium substrate 18A is turned for 90 degreesaround the connection of the first feed end 1111A and the second feedend 1121A, which correspondingly creates a positional relation that themedium substrate 18A is perpendicular to the circuit board 13A and thatthe connection of the first feed end 1111A and the second feed end 1121Ais parallel to the circuit board 13A.

It is worth mentioning that, based on the adjustment of the shape of thesecond radiating source pole 112A and the first radiating source pole111A, if the second radiating source pole 112A and the first radiatingsource pole 111A are extended in a manner to the other side of themedium substrate 18A, while the second radiating source pole 112A andthe first radiating source pole 111A both satisfy the requirement thatthe wire lengths from the second feed end 1121A and the first feed end1111A are respectively greater than or equal to λ/16, the size of themedium substrate 18A can be reduced so as to the size of themicrowave-doppler detecting module 10A.

For instance, according to some embodiments of the present invention,based on the structural relation that the second radiating source pole112A and the first radiating source pole 111A are symmetricalcorresponding to the midpoint of the connection between the first feedend 1111A and the second feed end 1121A and through the adjustment ofthe shapes of the second radiating source pole 112A and the firstradiating source pole 111A, the first radiating source pole 111A and thesecond radiating source pole 112A can be arranged on the same side ofthe medium substrate 18A to respectively be extended from the first feedend 1111A and the second feed end 1121A to another side of the mediumsubstrate 18A. In other words, the first feed end 1111A of the firstradiating source pole 111A and the second feed end 1121A of the secondradiating source pole 112A are provided on the same side of the mediumsubstrate 18A, wherein the first radiating source pole 111A is extendedfrom the first feed end 1111A as one end along a connection directionfrom the second feed end 1121A toward the first feed end 1111A, and iscontinuously extended to surround around the edge of the mediumsubstrate 18A to another side of the medium substrate 18A, wherein thesecond radiating source pole 112A is extended from the second feed end1121A as one end along a connection direction from the first feed end1111A toward the second feed end 1121A, and is continually extended tosurround around the edge of the medium substrate 18A to another side ofthe medium substrate 18A.

According to some embodiments of the present invention, the firstradiating source pole 111A and the second radiating source pole 112A ondifferent sides of the medium substrate 18A are respectively extendedfrom the first feed end 1111A and the second feed end 1121A to the othersides of the medium substrate 18A. Specifically, the first feed end1111A of the first radiating source pole 111A and the second feed end1121A of the second radiating source pole 112A are provided on differentsides of the medium substrate 18A, wherein the first radiating sourcepole 111A from the side of the medium substrate 18A with the first feedend 1111A provided thereon has the first feed end 1111A as an end to becontinually extended to surround around the edge of the medium substrate18A to the side of the medium substrate 18A that provides the secondfeed end 1121A. In which, the second radiating source pole 112A on theside of the medium substrate 18A having the second feed end 1121A loadedthereon utilizes the second feed end 1121A as an end to be continuallyextended to surround around the edge of the medium substrate 18A to theside of the medium substrate 18A that has the first feed end 1111A.

It is understandable that, according to some embodiments of the presentinvention, both sides of the medium substrate 18B are allowed to have atleast a pair of the antithetical dipoles 11B be respectively arrangedthereon, which can also ensures that the first radiating source pole111B and the second radiating source pole 112B of each pair of theantithetical dipoles 11B can be antithetically coupled and reinforcesthe antithetical coupling of the first radiating source pole 111B of theantithetical dipoles 11B provided on one side of the medium substrate18B and the second radiating source pole 112 of the antithetical dipoles11B provided on the other side of the medium substrate 18B, wherein thepresent invention shall not be limited here.

It is worth mentioning that it is understandable that, based on thedisclosure of the microwave-doppler detecting module of the aboveembodiments and their alternative modes: the second radiating sourcepole corresponding to the first radiating source pole of a pair of theantithetical dipoles may have various and diverse shapes and sizes,rather than be limited in a plant structure of restricted area. In otherwords, the grounded second radiating source pole is free from thelimitation of having a restricted minimum area for reference ground.Instead, the microwave-doppler detecting module is also capable of beingutilized in the application scenarios of the above mentioned microwavedetection module of columnar radiation source structure throughextending the second radiating source pole and the first radiatingsource pole out of a corresponding metal plate. Further, contrasting tothe microwave detection module of columnar radiation source structure,this microwave-doppler detecting module has a better stability in thecorresponding application scenarios because the corresponding metalplate will not affect the coupling between the first radiating sourcepole and the second radiating source pole thereof.

For demonstration, referring to FIGS. 15 and 16 of the drawings of thepresent invention, based on the application of the microwave-dopplerdetecting module in the scenario of the above mentioned microwavedetection module of columnar radiation source structure, the presentinvention further provides a microwave-doppler detecting device.

Specifically, referencing to FIG. 15 , the microwave-doppler detectingmodule 10 corresponding to FIG. 9 is embodied in the previouslymentioned application scenario of the microwave detection module ofcolumnar radiation source structure, wherein the microwave-dopplerdetecting device comprises the microwave-doppler detecting module 10 andan electromagnetic shielding layer 20, wherein the electromagneticshielding layer 20 has a through hole, wherein the circuit board 13 isdisposed in a shielded space corresponding to a side of theelectromagnetic shielding layer 20, wherein the first radiating sourcepole 111 and the second radiating source pole 112 are disposed inanother space corresponding to another side of the electromagneticshielding layer 20, wherein the first feeder wire 15 and the secondfeeder wire 16 pass through the electromagnetic shielding layer 20through the through hole 22 to form and construct the circuit connectionstructure among the first radiating source pole 111 and the secondradiating source pole 112 and the circuit unit 14, so as to utilize thearrangement of the first radiating source pole 111 and the secondradiating source pole 112 in a space outside of the shielded space toperform the activity sensing and detecting for the space outside of theshielded space. In which, with respect to the design of the shape of thefirst radiating source pole and the second radiating source pole 112,the projected area of the first radiating source pole 111 and the secondradiating source pole 112 in the direction perpendicular to theelectromagnetic shielding layer 20 on the electromagnetic shieldinglayer 20 can be reduced, which facilitates to reduce the size of thethrough hole 22, which helps to maintain the completeness of theelectromagnetic shielding layer 20 and to enhance the stealth of themounting of the microwave-doppler detecting module 10 in themicrowave-doppler detecting device.

It is understandable that the first radiating source pole 111 and thesecond radiating source pole 112 are coupled in an antithetical manner,so that when the first radiating source pole 111 and the secondradiating source pole 112 are in the space corresponding to the sameside of the electromagnetic shielding layer 20, the coupling between thefirst radiating source pole 111 and the second radiating source pole 112is capable of avoiding the impediment of the electromagnetic shieldinglayer 20, so as to facilitate to maintain the detecting stability of themicrowave-doppler detecting module 10 mounted in the microwave-dopplerdetecting device.

Especially, according to one embodiment of the present invention, theelectromagnetic shielding layer 20 is configured to be a LED light boardand have a plurality of LED lights 21 arranged on the side of the secondradiating source pole 112 corresponding to the first radiating sourcepole 111, wherein based on the shapes of the first radiating source pole111 and the second radiating source pole 112, the projected area of thefirst radiating source pole 111 and the second radiating source pole 112on the electromagnetic shielding layer in the direction perpendicular tothe electromagnetic shielding layer 20 can be reduced, so that the sizeof the through hole 22 can correspondingly be reduced and themicrowave-doppler detecting module 10 is allowed to be mounted on themicrowave-doppler detecting device through having first radiating sourcepole 111 and the second radiating source pole 112 pass through, whichfacilitates the integrity and completeness of the LED light board andfacilitates to avoid the LED light board from rendering dark zone.

Corresponding to FIG. 16 , the microwave-doppler detecting module 10A asillustrated in FIG. 13 is embodied in the previously mentionedapplication scenario of the microwave detection module of columnarradiation source structure, wherein the microwave-doppler detectingdevice comprises the microwave-doppler detecting module 10A and anelectromagnetic shielding layer 20A, wherein the electromagneticshielding layer 20A has a through hole, wherein the circuit board 13A isdisposed in a shielded space corresponding to a side of theelectromagnetic shielding layer 20A, wherein the first radiating sourcepole 111A and the second radiating source pole 112A are disposed inanother space corresponding to another side of the electromagneticshielding layer 20A, wherein the first feeder wire 15A and the secondfeeder wire 16A pass through the electromagnetic shielding layer 20Athrough the through hole 22A to form and construct the circuitconnection structure among the first radiating source pole 111A and thesecond radiating source pole 112A and the circuit unit 14A, so as toutilize the arrangement of the first radiating source pole 111A and thesecond radiating source pole 112A in a space outside of the shieldedspace to perform the activity sensing and detecting for the spaceoutside of the shielded space. In which, with respect to the design ofthe shape of the first radiating source pole and the second radiatingsource pole 112A, the projected area of the first radiating source pole111A and the second radiating source pole 112A in the directionperpendicular to the electromagnetic shielding layer 20A on theelectromagnetic shielding layer 20A can be reduced, which facilitates toreduce the size of the through hole 22A, which helps to maintain thecompleteness of the electromagnetic shielding layer 20A and to enhancethe stealth of the mounting of the microwave-doppler detecting module10A in the microwave-doppler detecting device.

It is worth mentioning that when the second feeder wire 16A and thefirst feeder wire 15A are configured in a manner that the second feederwire 16A is a shielding wire surrounding and encircling the first feederwire 15A and that the shielding wire is insertably arranged in a mannerto form a insertable and connectable circuit connection structure amongthe first radiating source pole 111A and the second radiating sourcepole 112A and the circuit unit 14A, such as that the shielding wire isconfigured to be a insertable and connectable structure with the mediumsubstrate 18A or the circuit board 13A so as to form an insertable andconnectable circuit connection structure among the first radiatingsource pole 111A and the second radiating source pole 112A and thecircuit unit 14A, the size of the through hole 22A of theelectromagnetic shielding layer 20 is allowed to be configured to meetthe wire diameter of the shielding wire, which facilitates to reduce thesize of the through hole 22A, so as to facilitate to maintain theintegrity and completeness of the electromagnetic shielding layer 20Aand enhance the stealth of the microwave-doppler detecting module 10Amounted on the microwave-doppler detecting device.

Especially, according to one embodiment of the present invention, theelectromagnetic shielding layer 20A is configured to be a LED lightboard and have a plurality of LED lights 21A arranged on the side of thesecond radiating source pole 112A corresponding to the first radiatingsource pole 111A, wherein based on the shape of the first radiatingsource pole 111A and the second radiating source pole 112A, theprojected area of the first radiating source pole 111A and the secondradiating source pole 112A on the electromagnetic shielding layer in thedirection perpendicular to the electromagnetic shielding layer 20A canbe reduced, so as to facilitate to avoid the LED light board fromrendering dark zone.

It is understandable that based on the electromagnetic wave reflectioncharacteristic of the electromagnetic shielding layer 20A, theelectromagnetic reflecting surface 12A can be equivalently formed on theelectromagnetic shielding layer 20A. In other words, the electromagneticreflecting surface 12A corresponding formed on the circuit board 13A maybe omitted. In other words, according to one embodiment of the presentinvention, the electromagnetic reflecting surface 12A correspondingformed on the circuit board 13A shall not be a limitation to themicrowave-doppler detecting device of the present invention.

It is worth mentioning that the above embodiments and alternative modesthereof are only examples, based on an antithetical coupling manner, themicrowave-doppler detecting module comprises at least a pair of theantithetical dipoles, wherein the shapes and sizes of the firstradiating source pole and the second radiating source pole of each pairof the antithetical dipoles may vary and the first radiating source poleand the second radiating source pole in the shielded space correspondingto a side of the electromagnetic shielding layer may extend through thethrough hole to a space out of the shielded space corresponding to theother side of the electromagnetic shielding layer, so as for achievingthe installation of the microwave-doppler detecting module on thecorresponding microwave-doppler detecting device, for achieving theactivity detecting outside of the shielded space through breakingthrough the shielded space, and for maintaining the integrity andcompleteness of the electromagnetic shielding layer. It not onlybenefits the stealth of the installation of the microwave-dopplerdetecting module on the microwave-doppler detecting device, but alsoachieves detection to the space outside of the shielded space withoutblind angle. It is understandable that the electromagnetic shieldinglayer of the microwave-doppler detecting device is not limited to beembodied to be a LED light board. The understanding to theelectromagnetic shielding layer shall be as a functional layer with anelectromagnetism shielding function, which includes, but not limited toa metal (net) layer, compound layer with metal component, metal oxidelayer, and etc. Hence, the electromagnetic shielding layer may also beembodied to be a device case with an electromagnetism shieldingfunction, such as a lamp shell, an air conditioner shell, an elevatorcargo, and etc.

One skilled in the art should be able to understand that the aboveembodiments are just examples, which shall not limit the presentinvention. Therefore, features of various embodiments may also beinterchanged and combined in order to easily come out and achieve otherimplementations that the drawings of the present invention have notspecified based on the disclosed contents of the present invention. Theembodiments have been shown and described for the purposes ofillustrating the functional and structural principles of the presentinvention and is subject to change without departure from suchprinciples. Therefore, this invention includes all modificationsencompassed within the spirit and scope of the following claims.

What is claimed is:
 1. A microwave-doppler detecting module adapted forradiating an electromagnetic wave for detecting an object activity in adirectional space, comprising: at least a pair of first antitheticaldipole and second antithetical dipole, having same size and shape,symmetrically coupled with each other in an antithetical couplingmanner, wherein said first antithetical dipole comprises a firstradiating source pole configured to be a conductive wire and said secondantithetical dipole comprises a second radiating source pole configuredto be a conductive wire, wherein said first radiating source pole has afirst feed end and is extended from said first feed end as a first endthereof, wherein said second radiating source pole has a second feed endand is extended from said second feed end as a second end thereof,wherein said first radiating source pole and said second radiatingsource pole are adapted for being fed by a same excitation signal feedsource at said first feed end and said second feed end respectively,wherein said first radiating source pole from said first feed end alongsaid first radiating source pole is correspondingly coupled withcorresponding positions of said second radiating source pole from saidsecond feed end along said second radiating source pole to form aradiation space which is a coverage area of the electromagnetic waveradiated by said microwave-doppler detecting module and is formedprotruding in a radial direction of a connection of said first feed endand said second feed end to avoid a detection dead zone in said radialdirection, wherein said first feed end and said second feed end approacheach other within a range smaller than or equal to λ/32, wherein λ is awavelength parameter corresponding to a feed signal frequency of saidexcitation signal feed source, wherein said first radiating source poleis configured to satisfy to have a wire length greater than or equal toλ/16 from said first feed end, wherein said second radiating source poleis configured to satisfy to have a wire length greater than or equal toλ/16 from said second feed end, so as to allow a current and potentialdistribution of said first radiating source pole and said secondradiating source pole to be presented in an antithetical distributionstate to a midpoint of the connection of said first feed end and saidsecond feed end when said first radiating source pole and said secondradiating source pole are fed by the same excitation signal feed sourceat said first feed end and said second feed end respectively, wherein awire length parameter L1 defined on said first radiating source polebetween said first feed end and said first end opposite to said firstfeed end satisfies λ/16≤L1≤λ and a wire length parameter L2 of saidsecond radiating source pole defined between said second feed end andsaid second end opposite to said second feed end satisfies λ/16≤L2≤λ,such that when said second radiating source pole is grounded at saidsecond feed end as one end thereof and said first radiating source poleis fed at said first feed end as another end thereof, said firstradiating source pole and said second radiating source pole is coupledin the antithetical coupling manner; and an electromagnetic reflectingsurface, wherein said pair of first and second antithetical dipoles isarranged spacingly to said electromagnetic reflecting surface in thedirectional space corresponding to said electromagnetic reflectingsurface such that said microwave-doppler detecting module is adapted fordetecting the object activity in the directional space, wherein adistance between said electromagnetic reflecting surface and saidmidpoint of said connection of said first feed end and said second feedend is greater than or equal to λ/32 and smaller than or equal to λ/2,so as to enhance a reflection of a radiation of the electromagnetic wavefrom said first radiating source pole and said second radiating sourcepole toward said electromagnetic reflecting surface at a radiationdirection corresponding to the radial direction of the connection ofsaid first feed end and said second feed end to construct a sensingdirection of said microwave-doppler detecting module from saidelectromagnetic reflecting surface toward said first radiating sourcepole and said second radiating source pole and to enhance the radiationof the electromagnetic wave in the sensing direction to enhance adirectional range of said microwave-doppler detecting module.
 2. Themicrowave-doppler detecting module, as recited in claim 1, furthercomprising a circuit unit which comprises an oscillation circuit moduleand a frequency mixing wave detection unit, wherein said frequencymixing wave detection unit is electrically coupled with said oscillationcircuit module and said pair of first and second antithetical dipoles,wherein said oscillation circuit module is configured to allow beingpowered to output a feed signal from a feeder pole thereof and to grounda grounding pole as an excitation signal feed source, wherein said firstradiating source pole is electrically coupled with said feeder pole ofsaid oscillation circuit module at said first feed end, wherein saidsecond radiating source pole is electrically connected with saidgrounding pole of said oscillation circuit module at said second feedend, such that when said oscillation circuit module is powered, saidfirst radiating source pole and said second radiating source pole arefed by the same source of said oscillation circuit module respectivelyat said first feed end and said second feed end.
 3. Themicrowave-doppler detecting module, as recited in claim 2, furthercomprising a circuit board, wherein said electromagnetic reflectingsurface and said circuit unit are provided on said circuit boardrespectively on an opposite side of said circuit board andcorrespondingly create a condition that said electromagnetic reflectingsurface obstructs between said pair of first and second antitheticaldipoles and said circuit unit.
 4. The microwave-doppler detectingmodule, as recited in claim 3, further comprising a first feeder wireand a second feeder wire, wherein said first radiating source pole iselectrically coupled with said feeder pole of said oscillation circuitmodule at said first feed end through said first feeder wire, whereinsaid second radiating source pole is electrically connected with saidgrounding pole of said oscillation circuit module at said second feedend through said second feeder wire.
 5. The microwave-doppler detectingmodule, as recited in claim 4, wherein said first feeder wire and saidsecond feeder wire are columnar straight conductive wires parallel toeach other.
 6. The microwave-doppler detecting module, as recited inclaim 4, wherein said first feeder wire has a first feeder section and afirst coupling section integrally extended from said first feedersection in a direction deviating from said first feeder section, whereinsaid second feeder wire has a second feeder section and a secondcoupling section integrally extended from said second feeder section ina direction deviating from said second feeder section, wherein saidfirst feeder section and said second feeder section are columnarstraight conductive wires parallel to each other and are respectivelyextended from said first feed end and said second feed end.
 7. Themicrowave-doppler detecting module, as recited in claim 6, wherein saidfirst feeder section is electrically coupled with said oscillationcircuit module and affixedly coupled with said circuit board throughsaid first coupling section, wherein said second feeder section iselectrically coupled with an earth potential of said oscillation circuitmodule and affixedly coupled with said circuit board through said secondcoupling section.
 8. The microwave-doppler detecting module, as recitedin claim 7, wherein said first coupling section and said second couplingsection respectively integrally extended from said first feeder sectionand said second feeder section away from each other, so that a distancebetween said first coupling section and said second coupling section indirections perpendicular to said first feeder section and said secondfeeder section is larger than a distance between said first feedersection and said second feeder section.
 9. The microwave-dopplerdetecting module, as recited to claim 8, wherein a distance between saidfirst coupling section and said second coupling section in thedirections perpendicular to said first feeder section and said secondfeeder section is smaller than or equal to λ/8.
 10. Themicrowave-doppler detecting module, as recited in claim 9, furthercomprising a fixing base, wherein said fixing base is attached on theopposite side of said circuit board that provides said electromagneticreflecting surface, wherein said first feeder wire and said secondfeeder wire are partially affixed on said fixing base.
 11. Themicrowave-doppler detecting module, as recited in claim 4, wherein saidsecond feeder wire surrounds around said first feeder wire and forms anelectromagnetic shielding cavity.
 12. The microwave-doppler detectingmodule, as recited in claim 11, wherein said second feeder wire has apair of notch positions from an end connected with said second radiatingsource pole along a direction of said first feeder wire, wherein saidsecond feeder wire has a first arm and a second arm defining said pairof notch positions therebetween, wherein said second radiating sourcepole is conductively extended from said second arm of said second feederwire, wherein said first radiating source pole is conductively extendedfrom said first arm of said second feeder wire and said first feederwire so as to be electrically connected with said grounding pole of saidoscillation circuit module, wherein said second feeder wire has at leasta notch arranged at said pair of said notch positions respectively alonga direction of said first feeder wire.
 13. The microwave-dopplerdetecting module, as recited in claim 12, wherein said second feederwire has one said notch at said pair of said notch positions, wherein anotch depth of said notch from an end of a connection of said secondfeeder wire and said second radiating source pole along a direction ofsaid first feeder wire is greater than or equal to λ/128.
 14. Themicrowave-doppler detecting module, as recited in claim 1, wherein anend of said first radiating source pole that is opposite to said firstfeed end is close to said electromagnetic reflecting surface relative tosaid first feed end, wherein an end of said second radiating source polethat is opposite to said second feed end is close to saidelectromagnetic reflecting surface relative to said second feed end,wherein sizes of said first radiating source pole and said secondradiating source pole in directions perpendicular to saidelectromagnetic reflecting surface are both greater than or equal toλ/32 and smaller than or equal to λ/4.
 15. The microwave-dopplerdetecting module, as recited in claim 14, wherein said first radiatingsource pole and said second radiating source pole are symmetricallydisposed according to said midpoint of said connection of said firstfeed end and said second feed end.
 16. The microwave-doppler detectingmodule, as recited in claim 15, wherein an end of said first radiatingsource pole that is opposite to said first feed end is further extendedtoward two opposite directions perpendicular to said connection of saidfirst feed end and said second feed end, wherein an end of said secondradiating source pole that is opposite to said second feed end isfurther extended toward said two opposite directions perpendicular tosaid connection of said first feed end and said second feed end.
 17. Themicrowave-doppler detecting module, as in recited in claim 15, whereinsaid conductive wire of said first radiating source pole is configuredto be a columnar conductive wire extended from said first feed end alonga connection direction from said second feed end toward said first feedend and a direction toward said electromagnetic reflecting surface,wherein said conductive wire of said second radiating source pole isconfigured to be a columnar conductive wire extended from said secondfeed end along a connection direction from said first feed end towardsaid second feed end and said direction toward said electromagneticreflecting surface.
 18. The microwave-doppler detecting module, as inrecited in claim 17, wherein each of said first radiating source poleand said second radiating source pole is bent once, wherein said bentfirst radiating source pole is correspondingly said columnar conductivewire extended from said first feed end along said connection directionfrom said second feed end toward said first feed end and then saiddirection toward said electromagnetic reflecting surface, said bentsecond radiating source pole is correspondingly said columnar conductivewire extended from said second feed end along said connection directionfrom said first feed end toward said second feed end and said directiontoward said electromagnetic reflecting surface.
 19. Themicrowave-doppler detecting module, as recited in claim 17, wherein saidfirst radiating source pole is extended from said first feed end alongsaid connection direction from said second feed end toward said firstfeed end and said direction toward said electromagnetic reflectingsurface at the same time, wherein said second radiating source pole isextended from said second feed end along said connection direction fromsaid first feed end toward said second feed end and said directiontoward said electromagnetic reflecting surface at the same time.
 20. Themicrowave-doppler detecting module, as recited in claim 19, wherein saidcolumnar conductive wire of said first radiating source pole isconfigured to be a columnar straight conductive wire extended from saidfirst feed end along said connection direction from said second feed endtoward said first feed end and said direction toward saidelectromagnetic reflecting surface at the same time, wherein saidcolumnar conductive wire of said second radiating source pole isconfigured to be a columnar straight conductive wire extended from saidsecond feed end along said connection direction from said first feed endtoward said second feed end and said direction toward saidelectromagnetic reflecting surface at the same time.
 21. Themicrowave-doppler detecting module, as recited in claim 19, wherein saidcolumnar conductive wire of said first radiating source pole isconfigured to be a columnar curvy conductive wire extended from saidfirst feed end along said connection direction from said second feed endtoward said first feed end and said direction toward saidelectromagnetic reflecting surface at the same time, wherein saidcolumnar conductive wire of said second radiating source pole isconfigured to be a columnar curvy conductive wire extended from saidsecond feed end along said connection direction from said first feed endtoward said second feed end and said direction toward saidelectromagnetic reflecting surface at the same time.
 22. Themicrowave-doppler detecting module, as recited with claim 1, whereinsaid first radiating source pole and said second radiating source poleare symmetrically disposed according to said midpoint of said connectionof said first feed end and said second feed end.
 23. Themicrowave-doppler detecting module, as recited in claim 22, wherein saidconductive wire of said first radiating source pole is configured to bea columnar straight conductive wire extended from one end of said firstfeed end along said second feed end toward a connection of said firstfeed end, wherein said conductive wire of said second radiating sourcepole is configured to be a columnar straight conductive wire extendedfrom one end of said second feed end along said first feed end toward aconnection of said second feed end.
 24. The microwave-doppler detectingmodule, as recited in claim 1, further comprising a medium substrate,wherein said first radiating source pole and said second radiatingsource pole are provided on said medium substrate in a microstrip lineform.
 25. The microwave-doppler detecting module, as recited in claim24, wherein both said first radiating source pole and said secondradiating source pole are provided on one side of said medium substrate,wherein said conductive wire of said first radiating source pole isconfigured to be a microstrip line extended from one end of said firstfeed end along said second feed end toward a connection of said firstfeed end, wherein said conductive wire of said second radiating sourcepole is configured to be a microstrip line extended from one end of saidsecond feed end along said first feed end toward a connection of saidsecond feed end.
 26. The microwave-doppler detecting module, as recitedin claim 25, wherein said medium substrate provides said electromagneticreflecting surface parallel to a side of said first radiating sourcepole and said second radiating source pole.
 27. The microwave-dopplerdetecting module, as recited in claim 25, wherein said medium substrateprovides said first radiating source pole and said electromagneticreflecting surface perpendicular to a side of said second radiatingsource pole, wherein a connection of said first feed end and said secondfeed end is parallel to said electromagnetic reflecting surface.
 28. Themicrowave-doppler detecting module, as recited in claim 24, wherein bothsaid first feed end of said first radiating source pole and said secondfeed end of said second radiating source pole are provided on one sideof said medium substrate, wherein said first radiating source pole isextended from one end of said first feed end along said second feed endtoward a connection direction of said first feed end and is continuouslyextended to surround around an edge of said medium substrate to anotherside of said medium substrate, wherein said second radiating source poleis extended from one end of said second feed end along said first feedend toward a connection direction of said second feed end and iscontinuously extended to surround around said edge of said mediumsubstrate to another side of said medium substrate.
 29. Themicrowave-doppler detecting module, as recited in claim 24, wherein saidfirst feed end of said first radiating source pole and said second feedend of said second radiating source pole are provided on opposite sidesof said medium substrate respectively, wherein said first radiatingsource pole is extended from one end of said first feed end toward aside of said medium substrate and is continuously extended to surroundaround an edge of said medium substrate to another side of said mediumsubstrate, wherein said second radiating source pole is extended fromone end of said second feed end toward an opposite side of said mediumsubstrate and is continuously extended to surround around said oppositeside of said medium substrate toward said another side of said mediumsubstrate.
 30. A microwave-doppler detecting device adapted forradiating an electromagnetic wave for detecting an object activity in adirectional space, comprising: a circuit unit, which comprises anoscillation circuit module and a frequency mixing wave detection unit,wherein said oscillation circuit module is configured for being poweredto output a feed signal from a feeder pole thereof and being grounded ata grounding pole thereof as an excitation signal feed source; a circuitboard, wherein said circuit unit is provided on said circuit board; anelectromagnetic shielding layer having a through hole, wherein saidcircuit unit is arranged in a space corresponding to a side of saidelectromagnetic shielding layer; and at least one pair of firstantithetical dipole and second antithetical dipole, having same size andshape, symmetrically coupled with each other in an antithetical couplingmanner, wherein said pair of first and second antithetical dipoles isdisposed in a space corresponding to another side of saidelectromagnetic shielding layer, wherein said first antithetical dipolecomprises a first radiating source pole configured to be a conductivewire and said second antithetical dipole comprises a second radiatingsource pole configured to be a conductive wire, wherein said firstradiating source pole has a first feed end and is extended from saidfirst feed end as a first end thereof, wherein said second radiatingsource pole has a second feed end and is extended from said second feedend as a second end thereof, wherein said frequency mixing wavedetection unit is electrically coupled with said oscillation circuitmodule and said pair of first and second antithetical dipoles, whereinsaid first radiating source pole from said first feed end along saidfirst radiating source pole is correspondingly coupled withcorresponding positions of said second radiating source pole from saidsecond feed end along said second radiating source pole to form aradiation space which is a coverage area of the electromagnetic waveradiated by said microwave-doppler detecting module and is formedprotruding in a radial direction of a connection of said first feed endand said second feed end to avoid a detection dead zone in said radialdirection, wherein said first radiating source pole is electricallycoupled with said feeder pole of said oscillation circuit module througha first feeder wire penetrating said electromagnetic shielding layerthrough said through hole at said first feed end, wherein said secondradiating source pole is electrically connected with said grounding poleof said oscillation circuit module through a second feeder wirepenetrating said electromagnetic shielding layer through said throughhole at said second feed end, wherein said first feed end and saidsecond feed end approach each other within a range smaller than or equalto λ/32, wherein λ is a wavelength parameter corresponding to afrequency of the feed signal, wherein said first radiating source poleis configured to have a wire length greater than or equal to λ/16 fromsaid first feed end, wherein said second radiating source pole isconfigured to have a wire length greater than or equal to λ/16 from saidsecond feed end, so as to allow a potential distribution of said firstradiating source pole and said second radiating source pole to presentan antithetical distribution state to a midpoint of a connection of saidfirst feed end and said second feed end, so as to correspondingly couplesaid first radiating source pole from said first feed end along saidfirst radiating source pole with corresponding positions of said secondradiating source pole from said second feed end along said secondradiating source pole.